Dr. Laurent Lamaignère Profile

Dr. Laurent Lamaignère

Engineer at CEA/Cesta

SPIE Involvement:

Conference Program Committee | Author

Publications (98)

Proceedings Article | 18 December 2024 Presentation

ELAN: a testbed for testing laser-induced damage of large and thick optics for Laser Mégajoule

Charles Bouyer, Laurent Lamaignère, Roger Courchinoux, Thierry Donval

Proceedings Volume PC13190, PC131900C (2024) https://doi.org/10.1117/12.3032518

KEYWORDS: Laser optics, Laser induced damage, Nd:YAG lasers, Spatial light modulators, Nonlinear control, Windows, Vacuum, Simulations, Polishing, Phase shift keying

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Proceedings Article | 18 December 2024 Presentation + Paper

Progress in standardizing laser-induced damage threshold testing

Andrius Melninkaitis, Martynas Keršys, Linas Smalakys, Gintare Batavičiūtė, Egidijus Pupka, Justinas Galinis, Marco Jupé, Clara Engesser, Laurent Lamaignère, Detlev Ristau

Proceedings Volume 13190, 1319009 (2024) https://doi.org/10.1117/12.3029899

KEYWORDS: Standards development, Laser damage threshold, Laser induced damage, Laser applications, Testing and analysis, Laser irradiation, Continuous wave operation, Solid state lasers, Solid state electronics, Reliability

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Proceedings Article | 24 June 2024 Presentation + Paper

Recent advancements in standardization effort for laser-induced damage threshold testing

Andrius Melninkaitis, Martynas Keršys, Linas Smalakys, Gintarė Batavičiūtė, Egidijus Pupka, Justinas Galinis, Marco Jupé, Clara Engesser, Laurent Lamaignère, Detlev Ristau

Proceedings Volume 13020, 130200G (2024) https://doi.org/10.1117/12.3023107

KEYWORDS: Laser damage threshold, Laser irradiation, Standards development, Laser induced damage, Reliability, Testing and analysis

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Proceedings Article | 18 June 2024 Presentation

Enhancing the accuracy of laser-induced damage tests by measuring non-linear beam propagation in Laser MégaJoule optics: example of the study of the impact of beam polarization state on fused silica

Sylvain Grosjean, Charles Bouyer, Martin Cormier, Jean-François Gleyze, Nadja Roquin, Jean-Yves Natoli, Laurent Lamaignère

Proceedings Volume PC13021, PC1302108 (2024) https://doi.org/10.1117/12.3016076

KEYWORDS: Laser induced damage, Polarization, Laser beam propagation, Silica, Optical testing, Kerr effect, Polarization density, Ultraviolet radiation, UV optics, Metrology

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Proceedings Article | 18 June 2024 Presentation

Quarter-wave plate UV transmission grating for high power lasers

Jérôme Néauport, Pierre Brianceau, Jerome Daurios, Laurent Lamaignere, Nicolas Bonod

Proceedings Volume PC13021, PC1302109 (2024) https://doi.org/10.1117/12.3014433

KEYWORDS: Ultraviolet radiation, High power lasers, Optical gratings, Optics manufacturing, Optical transmission, Manufacturing, Laser welding, Wavefronts, Wave plates, UV optics

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Proceedings Article | 6 June 2024 Poster

MELBA: a laser designed for comprehensive studies of laser-induced damage parameters in the nanosecond regime at 351 nm

Sylvain Grosjean, Charles Bouyer, Martin Cormier, Jean-François Gleyze, Nadja Roquin, Jean-Yves Natoli, Laurent Lamaignère

Proceedings Volume PC13021, PC130210B (2024) https://doi.org/10.1117/12.3017789

KEYWORDS: Laser induced damage, Temporal resolution, Laser scattering, Wave propagation, Wave plates, Ultraviolet radiation, Switching, Streak cameras, Spatial light modulators, Silica

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Proceedings Article | 24 November 2023 Poster

Energy and power upgrade on LMJ: approach & tools to identify laser damage growth statistics

Chloé Lacombe, Laurent Lamaignère, Kévin Gaudfrin, Florian Gaudfrin, Thierry Donval, Vincent Beau, Jérôme Néauport

Proceedings Volume PC12726, PC127261B (2023) https://doi.org/10.1117/12.2685175

KEYWORDS: Statistical analysis, Laser induced damage, Optical components, Laser energy, Ultraviolet radiation, Physical phenomena, Optical tracking, Laser welding, Laser soldering, Laser processing

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Proceedings Article | 24 November 2023 Poster

MELBA: A testbed to study the impact of pulse characteristics on laser-induced damage in UV range and nanosecond regime

Sylvain Grosjean, Charles Bouyer, Martin Cormier, Jean-François Gleyze, Nadja Roquin, Jean-Yves Natoli, Laurent Lamaignère

Proceedings Volume PC12726, PC127261F (2023) https://doi.org/10.1117/12.2685226

KEYWORDS: Ultraviolet radiation, Laser induced damage, Temporal resolution, Laser scattering, Wave propagation, Wave plates, Switching, Streak cameras, Spatial light modulators, Silica

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Proceedings Article | 24 November 2023 Presentation

Stimulated Brillouin scattering induced by a temporal modulated nanosecond UV laser beam

Rachel Nuter, Charles Bouyer, Jean-François Gleyze, Nadja Roquin, Laurent Lamaignère

Proceedings Volume PC12726, PC1272604 (2023) https://doi.org/10.1117/12.2685004

KEYWORDS: Ultraviolet radiation, Laser scattering, Laser frequency, Modulation frequency, Amplitude modulation, Modulation, Phase shift keying, Phase modulation, Optical components, Pulsed laser operation

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Proceedings Article | 24 November 2023 Presentation

Influence of linear-to-circular polarization conversion on laser-induced damage of fused silica at 351 nm

Sylvain Grosjean, Charles Bouyer, Martin Cormier, Jean-François Gleyze, Nadja Roquin, Jean-Yves Natoli, Laurent Lamaignère

Proceedings Volume PC12726, PC127260S (2023) https://doi.org/10.1117/12.2685228

KEYWORDS: Polarization, Silica, Laser induced damage, Polarization density, Beam propagation method, Ultraviolet radiation, Pulsed laser operation, Kerr effect

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Proceedings Article | 24 November 2023 Presentation + Paper

Influence of the multilayer dielectric design on the laser damage resistance of pulse-compression gratings

Saaxewer Diop, Nicolas Bonod, Marine Chorel, Éric Lavastre, Nadja Roquin, Lilian Heymans, Pierre Brianceau, Laurent Gallais, Laurent Lamaignère

Proceedings Volume 12726, 1272607 (2023) https://doi.org/10.1117/12.2685304

KEYWORDS: Design and modelling, Laser induced damage, Resistance, Dielectrics, Optical gratings, Electric fields, Diffraction gratings, Laser damage threshold, Etching, Diffraction

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Proceedings Article | 3 December 2022 Poster + Presentation

Sub-pixel damage monitoring on Laser MegaJoule final optics

Guillaume Hallo, Yanis Abdelmoumni-Prunes, Sylvain Grosjean, Chloé Lacombe, Laurent Lamaignere, Jérôme Néauport, François Hild

Proceedings Volume PC12300, PC123000W (2022) https://doi.org/10.1117/12.2639287

KEYWORDS: Laser optics, Laser induced damage, Imaging systems, National Ignition Facility, Image resolution, Optical components, Light scattering, Laser energy, Laser development, Image fusion

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Proceedings Article | 3 December 2022 Poster + Presentation

MELBA: a testbed to study the impact of pulse characteristics on laser-induced damage in UV range and nanosecond regime

Charles Bouyer, Martin Cormier, Jean-François Gleyze, Sylvain Grosjean, Nadja Roquin, Jean-Yves Natoli, Laurent Lamaignère

Proceedings Volume PC12300, PC123000Y (2022) https://doi.org/10.1117/12.2642665

KEYWORDS: Laser induced damage, Ultraviolet radiation, Modulation, Streak cameras, Spectroscopy, Picosecond phenomena, Photodiodes, Oscilloscopes, Optical components, Modulators

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Proceedings Article | 3 December 2022 Presentation

Manufacturing and online testing of an optical accurate calibration component for laser damage monitoring on LMJ

Chloé Lacombe, Guillaume Hallo, Laurent Lamaignère, Martin Sozet, Jérôme Néauport

Proceedings Volume PC12300, PC1230006 (2022) https://doi.org/10.1117/12.2639665

KEYWORDS: Optics manufacturing, Laser induced damage, Calibration, Optical testing, Optical calibration, Laser optics, Laser energy, Ultraviolet radiation, Fusion energy, Cameras

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Proceedings Article | 3 December 2022 Poster + Presentation

Laser induced damage of an amplifier medium immersed in a fluid

Laurent Lamaignère, Guilhem Rouzaud, Guillaume Duchateau, Philippe Balcou, Denis Marion, Christophe Feral, Stephane Petit, Dominique Descamps, Antoine Rohm, Marie Christine Nadeau, Eric Mevel, Jerome Lhermitte

Proceedings Volume PC12300, PC123000F (2022) https://doi.org/10.1117/12.2644511

KEYWORDS: Laser induced damage, Amplifiers, Laser applications, Cooling systems, Resistance, Picosecond phenomena, Liquids, Laser damage threshold, Laser crystals, Environmental sensing

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Proceedings Article | 3 December 2022 Presentation

Influence of temporal modulations with non-linear propagation on laser-induced damage of fused silica

Charles Bouyer, Martin Cormier, Jean-François Gleyze, Sylvain Grosjean, Nadja Roquin, Laurent Lamaingère, Jean-Yves Natoli

Proceedings Volume PC12300, PC1230003 (2022) https://doi.org/10.1117/12.2642239

KEYWORDS: Modulation, Silica, Laser induced damage, Pulsed laser operation, Light emitting diodes, Laser scattering, Ultraviolet radiation, Scattering, Phase modulation, Kerr effect

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Proceedings Article | 19 November 2021 Poster + Paper

Laser damage metrology with small and large beams on a unique testbed

Laurent Lamaignère, Charles Bouyer, Matthieu Veinhard, Romain Parreault, Jean-Yves Natoli

Proceedings Volume 11910, 119101E (2021) https://doi.org/10.1117/12.2598918

KEYWORDS: Laser induced damage, Phase shift keying, Optical components, Phase measurement, Optical testing, Geometrical optics, Beam shaping, Silica, CCD cameras, Modulation

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Proceedings Article | 12 October 2021 Presentation

Toward a design optimization’s method to increase the laser induced damage threshold of MLD mirrors and gratings used in sub-picosecond regime

Marine Chorel, Florian Tournemenne, Eric Lavastre, Laurent Lamaignère, Saaxewer Diop, Nicolas Bonod

Proceedings Volume 11910, 119100V (2021) https://doi.org/10.1117/12.2600628

KEYWORDS: Mirrors, Laser damage threshold, Optical design, Laser induced damage, Optics manufacturing, Resistance, Refractive index, Pulsed laser operation, Picosecond phenomena, Multilayers

Proceedings Article | 12 October 2021 Presentation

Influence of temporal modulations on laser-induced damage of silica optics at 351 nm in nanosecond regime

Charles Bouyer, Romain Parreault, Nadja Roquin, Jean-Yves Natoli, Laurent Lamaignère

Proceedings Volume 11910, 119100S (2021) https://doi.org/10.1117/12.2598845

KEYWORDS: Laser induced damage, Modulation, Silica, Pulsed laser operation, Modulators, Absorption, Ultraviolet radiation, Tunable lasers, Q switching, Q switched lasers

Proceedings Article | 12 September 2021 Presentation

Minimization of electric field intensity in pillars of MLD gratings through the design of the planar dielectric multilayers

Saaxewer Diop, Nicolas Bonod, Laurent Gallais, Marine Chorel, Eric A. Lavastre, Laurent Lamaignère

Proceedings Volume 11872, 1187207 (2021) https://doi.org/10.1117/12.2598972

KEYWORDS: Dielectrics, Optical design, Laser induced damage, Diffraction, Laser damage threshold, Etching, Picosecond phenomena, Optical components, Mirrors, Laser therapeutics

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Multilayer dielectric gratings (MLDG) are key optical components of Petawatt-class laser that are used to compress short pulses of high intensities. Laser-induced damage can occur on the top area of the components, typically arising in the pillars periodically etched. This phenomenon limits the power yielded by high power laser facilities such as PETAL (PETwatt Aquitaine Laser) laser facility. PETAL is expected to delivery pulses with a wavelength around 1053 nm, an energy around 3 kJ and a pulse duration between 0.5 and 10 ps. Coupled with LMJ (Laser MegaJoule), PETAL aims to study materials in extreme conditions to reproduce the environment in the heart of stars or planets, fusion by inertial confinement, particularly rapid ignition and shock ignition, and nuclear physics for medical proton therapy. In this study, we present a process to improve the laser-induced damage threshold of PETAL pulse-compression gratings in sub-picosecond regime by reducing the electric field intensity in the pillars. PETAL gratings have specific parameters of operation: Transverse Electric polarization, under vacuum, a period equal to 1780 lines per mm and diffraction efficiency higher than 95% for the -1st order. Theoretical designs are calculated with a code developed at the Fresnel Institute. The code solves Fresnel equations by using the differential method, Fast Fourier Factorization (FFF) and S matrix propagation algorithm. As a result, we obtain the distribution of the electric field and diffraction efficiency of any given diffraction order. First, starting with a given MLD mirror, we calculate an etching profile that maximizes the diffraction efficiency at the -1st order by taking into account the manufacturing constraints of future suppliers. Then, we optimize the mirror stack without changing the etching profile. We modify only the first top layers under the grooves. We obtained theoretical designs with the same etching profile and identical diffraction efficiency, associated with different electric field intensity values and expected different laser induced damage thresholds.

Proceedings Article | 12 September 2021 Presentation + Paper

How to provide reliable metrology of online laser-induced damage on large fused silica optics using digital image correlation

Guillaume Hallo, Chloé Lacombe, Romain Parreault, Nadja Roquin, Thierry Donval, Laurent Lamaignère, Jérôme Néauport, François Hild

Proceedings Volume 11873, 118730A (2021) https://doi.org/10.1117/12.2597310

KEYWORDS: Laser induced damage, Digital image correlation, Silica, Image registration, Laser energy, Ultraviolet radiation, Metrology, Image resolution, Light emitting diodes, Damage detection

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SPIE Journal Paper | 21 November 2020 Open Access

Round-robin measurements of the laser-induced damage threshold with sub-picosecond pulses on optical single layers

Laurent Lamaignère, Alexandre Ollé, Marine Chorel, Nadja Roquin, Alexei Kozlov, Brittany Hoffman, James Oliver, Stavros Demos, Laurent Gallais, Raluca Negres, Andrius Melninkaitis

OE, Vol. 60, Issue 03, 031005, (November 2020) https://doi.org/10.1117/12.10.1117/1.OE.60.3.031005

KEYWORDS: Laser damage threshold, Hybrid fiber optics, Laser induced damage, Refractive index, Dielectrics, Optical engineering, Sensors, Environmental sensing, Diagnostics, Beam propagation method

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Proceedings Article | 7 October 2020 Presentation + Paper

Damage probability versus damage density: analysis from tests using small beams versus large beams

Laurent Lamaignère, Matthieu Veinhard, Florian Tournemenne, Charles Bouyer, Romain Parreault, Roger Courchinoux, Jean-Yves Natoli, Claude Rouyer, Stéphane Bouillet

Proceedings Volume 11514, 115140E (2020) https://doi.org/10.1117/12.2571834

KEYWORDS: Analytical research, Beam shaping, Statistical analysis, Laser induced damage, Resistance, Laser damage threshold, Laser sources

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Proceedings Article | 3 December 2019 Presentation

Round-robin measurements of optical coatings laser-induced–damage threshold in the subpicosecond range (Conference Presentation)

Laurent Lamaignère, Alexandre Ollé, Marine Chorel, Nadja Roquin, Alexeï Kozlov, Brittany Hoffman, Stavros Demos, Laurent Gallais, Andrius Melninkaitis

Proceedings Volume 11173, 1117319 (2019) https://doi.org/10.1117/12.2536678

KEYWORDS: Laser damage threshold, Optical coatings, Optical testing, Laser optics, Standards development, Control systems, Optical components, High power lasers, Polarization, Environmental sensing

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Proceedings Article | 26 November 2019 Open Access

Phenomenology and mechanisms of laser damage growth on optical coatings in the sub-ps pulse regime (Conference Presentation)

Laurent Gallais, Alexandre Ollé, Martin Sozet, Laurent Lamaignère

Proceedings Volume 11173, 1117309 (2019) https://doi.org/10.1117/12.2537620

KEYWORDS: Laser induced damage, Optical coatings, Laser processing, Dielectrics, Ultrafast phenomena, Ionization, Resonance enhancement, Diffraction, Laser scattering, Scattering

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Proceedings Article | 8 July 2019 Paper

Laser-induced damage of high power systems: phenomenology and mechanisms

L. Lamaignère, R. Courchinoux, N. Roquin, R. Parreault, T. Donval

Proceedings Volume 11063, 1106309 (2019) https://doi.org/10.1117/12.2537106

KEYWORDS: Laser induced damage, High power lasers, Fractal analysis, Optical components, Laser beam diagnostics, Beam shaping, Silica, Spatial light modulators, Modulation, Optical testing

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Proceedings Article | 16 May 2018 Paper

Laser damage metrology in the sub-ps range for the PETAL facility

Laurent Lamaignère, Martin Sozet, Eric Lavastre, Jérôme Néauport, Nadja Roquin, Laurent Gallais

Proceedings Volume 10713, 107130U (2018) https://doi.org/10.1117/12.2319809

KEYWORDS: Laser induced damage, Mirrors, Laser damage threshold, Laser development, Optical components, Metrology, Laser systems engineering, Optics manufacturing

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Proceedings Article | 13 November 2017 Paper

MELBA: a fully customizable laser for damage experiments

Matthieu Veinhard, Odile Bonville, Roger Courchinoux, Romain Parreault, Jean-Yves Natoli, Laurent Lamaignère

Proceedings Volume 10447, 104471U (2017) https://doi.org/10.1117/12.2281125

KEYWORDS: Laser induced damage, Wavefronts, Microscopes, Image processing, Silica, Optical testing, Diagnostics, Laser systems engineering, Modulation, Laser beam propagation

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Proceedings Article | 13 November 2017 Paper

Growth of laser-induced damage on the exit surface of fused silica optics with a millimetric laser beam

Matthieu Veinhard, Odile Bonville, Roger Courchinoux, Romain Parreault, Jean-Yves Natoli, Laurent Lamaignère

Proceedings Volume 10447, 1044708 (2017) https://doi.org/10.1117/12.2281124

KEYWORDS: Fractal analysis, Laser induced damage, Silica, Microscopes, Laser energy, Pulsed laser operation, Surface finishing, Image segmentation, Laser optics

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Proceedings Article | 23 February 2017 Paper

Laser damage metrology of PETAL optics

Laurent Lamaignère, Martin Sozet, Eric Lavastre, Jérôme Neauport, Nadja Roquin, Laurent Gallais

Proceedings Volume 10084, 100840C (2017) https://doi.org/10.1117/12.2249987

KEYWORDS: Laser induced damage, Resistance, Laser development, Pulsed laser operation, Laser damage threshold, Optical components, Optics manufacturing, Metrology, Mirrors, High power lasers, Laser systems engineering, Beam shaping

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Proceedings Article | 6 December 2016 Open Access

Investigation of mechanisms leading to laser damage morphology

L. Lamaignère, M. Chambonneau, R. Diaz, P. Grua, R. Courchinoux, J.-Y. Natoli, J. L. Rullier

Proceedings Volume 10014, 1001413 (2016) https://doi.org/10.1117/12.2244827

KEYWORDS: Silica, Plasma, Laser ablation, Laser induced damage, Modulation, Ionization, Spatial light modulators, Pulsed laser operation, Absorption, Tellurium

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The original damage ring pattern at the exit surface of fused silica induced by highly modulated nanosecond infrared laser pulses demonstrates the time dependence of damage morphology. Such a damage structure is used to study the dynamics of the plasma issued from open cracks. This pattern originates from electron avalanche in this plasma, which simultaneously leads to an ionization front displacement in air and a silica ablation process. Experiments have shown that the propagation speed of the detonation wave reaches about 20 km/s and scales as the cube root of the laser intensity, in good agreement with theoretical hydrodynamics modeling. During this presentation, we present the different phases and the associated mechanisms leading to this peculiar morphology: • During an incubation phase, a precursor defect provides energy deposit that drives the near surface material into a plasma state. • Next the silica plasma provides free electrons in the surrounding air, under laser irradiation an electron avalanche is initiated and generates a breakdown wave. • Then this breakdown wave leads to an expansion of the air plasma. This latter is able to heat strongly the silica surface as well as generate free electrons in its conduction band. Hence, the silica becomes activated along the breakdown wave. • When the silica has become absorbent, an ablation mechanism of silica occurs, simultaneously with the air plasma expansion, resulting in the formation of the ring patterns in the case of these modulated laser pulses. These mechanisms are supported by experiments realized in vacuum environment. A model describing the expansion of the heated area by thermal conduction due to plasma free electrons is then presented. Next, the paper deals with the two damage formation phases that are distinguished. The first phase corresponds to the incubation of the laser flux by a subsurface defect until the damage occurrence: an incubation fluence corresponds to this phase. The second is related to the damage expansion that only refers to the energy deposit feeding the activation mechanism up to the end of the pulse: an expansion fluence corresponds to this phase. A striking feature is that the damage diameters are proportional to the fluence of expansion at a given shot fluence. Indirectly, the fluences of incubation by the precursors are then determined.

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Proceedings Article | 6 December 2016 Paper

Development of a laser damage growth mitigation process, based on CO2 laser micro processing, for the Laser MegaJoule fused silica optics

Thomas Doualle, Laurent Gallais, Serge Monneret, Stephane Bouillet, Antoine Bourgeade, Christel Ameil, Laurent Lamaignère, Philippe Cormont

Proceedings Volume 10014, 1001407 (2016) https://doi.org/10.1117/12.2245148

KEYWORDS: Laser induced damage, Carbon dioxide lasers, Silica, Resistance, Laser processing, Gas lasers, Carbon monoxide, Laser irradiation, Wavefronts, Phase imaging

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Proceedings Article | 6 December 2016 Paper

Time-resolved microscopy studies of laser damage dynamics at 0.5-1ps, 1030nm

L. Gallais, A. Ollé, M. Sozet, J. Berthelot, S. Monneret, J. Néauport, L. Lamaignère

Proceedings Volume 10014, 1001417 (2016) https://doi.org/10.1117/12.2245150

KEYWORDS: Laser induced damage, Microscopy, Laser beam diagnostics, Microscopes, Silica, Kerr effect, Mirrors, Image processing, Wavefront sensors, Hybrid fiber optics

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SPIE Journal Paper | 17 October 2016

CO₂ laser microprocessing for laser damage growth mitigation of fused silica optics

Thomas Doualle, Laurent Gallais, Serge Monneret, Stéphane Bouillet, Antoine Bourgeade, Christel Ameil, Laurent Lamaignère, Philippe Cormont

OE, Vol. 56, Issue 01, 011022, (October 2016) https://doi.org/10.1117/12.10.1117/1.OE.56.1.011022

KEYWORDS: Wavefronts, Gas lasers, Laser induced damage, Silica, Carbon monoxide, Resistance, Laser processing, Phase imaging, Pulsed laser operation, Optical engineering

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SPIE Journal Paper | 25 August 2016 Open Access

Analysis of laser damage tests on coatings designed for broad bandwidth high reflection of femtosecond pulses

John Bellum, Trevor Winstone, Laurent Lamaignere, Martin Sozet, Mark Kimmel, Patrick Rambo, Ella Field, Damon Kletecka

OE, Vol. 56, Issue 01, 011012, (August 2016) https://doi.org/10.1117/12.10.1117/1.OE.56.1.011012

KEYWORDS: Optical coatings, Laser induced damage, Pulsed laser operation, Reflection, Picosecond phenomena, Femtosecond phenomena, Optical engineering, Laser damage threshold, Absorption, Humidity

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Proceedings Article | 22 July 2016 Paper

Laser damage measurement of thick silica plates using a new laser injection scheme

D. Penninckx, R. Diaz, O. Bonville, R. Courchinoux, L. Lamaignère, J. Luce

Proceedings Volume 9983, 99830S (2016) https://doi.org/10.1117/12.2235748

KEYWORDS: Laser induced damage, Silica, Kerr effect, High power lasers, Phase modulation, Laser scattering, Continuous wave operation, Laser resonators, Q switched lasers, Q switching

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Proceedings Article | 23 November 2015 Paper

Refined metrology of spatio-temporal dynamics of nanosecond laser pulses

R. Diaz, R. Courchinoux, J. Luce, C. Rouyer, J.-L. Rullier, J.-Y. Natoli, L. Lamaignère

Proceedings Volume 9632, 96321S (2015) https://doi.org/10.1117/12.2195470

KEYWORDS: Metrology, Kerr effect, Laser metrology, Nonlinear optics, Laser beam propagation, Q switched lasers, Spatial light modulators, Streak cameras, Photodiodes, Nd:YAG lasers, Diffraction gratings, Picosecond phenomena, Resonators, Mirrors

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Proceedings Article | 23 November 2015 Paper

Study of laser-induced damage at 1064nm in fused silica samples in vacuum environment

R. Diaz, M. Chambonneau, P. Grua, J.-L. Rullier, J.-Y. Natoli, L. Lamaignère

Proceedings Volume 9632, 96320F (2015) https://doi.org/10.1117/12.2195471

KEYWORDS: Laser induced damage, Silica, Plasma, Laser ablation, Ionization, Electrons, Spatial light modulators, Absorption, Chronology, Pulsed laser operation

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Proceedings Article | 23 November 2015 Paper

Laser damage resistance of optical components in sub-picosecond regime in the infrared

Martin Sozet, Jérôme Néauport, Eric Lavastre, Nadja Roquin, Laurent Gallais, Laurent Lamaignère

Proceedings Volume 9632, 96320N (2015) https://doi.org/10.1117/12.2194286

KEYWORDS: Optical components, Laser induced damage, Resistance, Optical coatings, Pulsed laser operation, Laser optics, Infrared lasers, High power lasers, Manufacturing, Laser damage threshold, Mirrors, Scanning electron microscopy, Digital image correlation, Optics manufacturing, Infrared radiation, Dielectrics

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Proceedings Article | 14 July 2015 Paper

Analysis of laser damage tests on a coating for broad bandwidth high reflection of femtosecond pulses

John Bellum, Trevor Winstone, Laurent Lamaignere, Martin Sozet, Mark Kimmel, Patrick Rambo, Ella Field, Damon Kletecka

Proceedings Volume 9532, 95321I (2015) https://doi.org/10.1117/12.2186789

KEYWORDS: Coating, Laser induced damage, Pulsed laser operation, Picosecond phenomena, Environmental sensing, Reflection, Femtosecond phenomena, Laser damage threshold, Humidity, Optical coatings

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Proceedings Article | 12 May 2015 Paper

Sub-picosecond laser induced damage test facility for petawatt reflective optical components characterizations

Martin Sozet, Jérôme Néauport, Eric Lavastre, Nadja Roquin, Laurent Gallais, Laurent Lamaignère

Proceedings Volume 9513, 951316 (2015) https://doi.org/10.1117/12.2178734

KEYWORDS: Laser induced damage, Optical components, Dielectrics, Reflectivity, Laser damage threshold, Laser development, Resistance, Optical coatings, High power lasers, Fusion energy

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Proceedings Article | 26 February 2015 Paper

Laser damage resistance qualification of large optics for high power laser

L. Lamaignère, M. Chambonneau, R. Diaz, R. Courchinoux, T. Donval

Proceedings Volume 9345, 934508 (2015) https://doi.org/10.1117/12.2077421

KEYWORDS: Cameras, Beam shaping, Error analysis, Laser induced damage, High power lasers, Gaussian beams, Optical components, Optical testing, Neodymium, Metrology

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Proceedings Article | 31 October 2014 Paper

Influence of organic contamination on laser induced damage of multilayer dielectric mirrors by subpicosecond laser pulses

O. Favrat, M. Sozet, I. Tovena-Pécault, L. Lamaignère, J. Néauport

Proceedings Volume 9237, 923707 (2014) https://doi.org/10.1117/12.2067902

KEYWORDS: Contamination, Mirrors, Laser induced damage, Dielectric mirrors, Laser damage threshold, Optical components, Natural surfaces, Laser development, Laser optics, Molecules

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Proceedings Article | 31 October 2014 Paper

Laser-induced damage morphology in fused silica at 1064 nm in the nanosecond regime

Maxime Chambonneau, Romain Diaz, Guillaume Duchateau, Pierre Grua, Jean-Yves Natoli, Jean-Luc Rullier, Laurent Lamaignère

Proceedings Volume 9237, 923715 (2014) https://doi.org/10.1117/12.2068733

KEYWORDS: Silica, Laser induced damage, Spatial light modulators, Plasma, Electrons, Ionization, Laser ablation, Wave propagation, Pulsed laser operation, Photomicroscopy

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Proceedings Article | 22 September 2014 Paper

Large beam damage experiments in fused silica optics at 351nm

L. Lamaignère, G. Dupuy, A. Bourgeade, A. Roques, R. Courchinoux

Proceedings Volume 9238, 92380C (2014) https://doi.org/10.1117/12.2073640

KEYWORDS: Silica, Laser induced damage, Optical components, Statistical analysis, Statistical modeling, High power lasers, Polishing, Frequency conversion, Crystals, CCD cameras

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Proceedings Article | 22 September 2014 Paper

Contribution of the metrology to the study of laser induced damage with multiple longitudinal mode pulses

R. Diaz, M. Chambonneau, R. Courchinoux, J. Luce, J.-Y. Natoli, L. Lamaignère

Proceedings Volume 9238, 92380I (2014) https://doi.org/10.1117/12.2073237

KEYWORDS: Photodiodes, Streak cameras, Laser induced damage, Metrology, Nd:YAG lasers, Statistical analysis, Spatial light modulators, Frequency conversion, Laser resonators, Crystals

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Proceedings Article | 22 September 2014 Paper

Measurements of laser induced damage density produced with multiple longitudinal mode pulses in fused silica

R. Diaz, M. Chambonneau, P. Grua, J.-L. Rullier, J.-Y. Natoli, L. Lamaignère

Proceedings Volume 9238, 923803 (2014) https://doi.org/10.1117/12.2073234

KEYWORDS: Spatial light modulators, Absorption, Laser induced damage, Silica, Annealing, Photomicroscopy, Resistance, Eye models, Atmospheric plasma, Plasma

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Proceedings Article | 14 November 2013 Paper

Laser-induced damage density of thick optical components

L. Lamaignère, T. Donval, R. Diaz, R. Courchinoux

Proceedings Volume 8885, 88851Q (2013) https://doi.org/10.1117/12.2030397

KEYWORDS: Phase modulation, Laser induced damage, Optical components, Nonlinear optics, Silica, Beam propagation method, Laser beam propagation, Photodiodes, High power lasers, Beam analyzers

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Proceedings Article | 18 February 2013 Paper

Update of Laser Mégajoule large optics wavefront performance requirements

Stéphane Mainguy, Jean-Philippe Airiau, Thierry Bart, Vincent Beau, Edouard Bordenave, Stéphane Bouillet, Christian Chappuis, Sandrine Chico, Philippe Cormont, Nathalie Darbois, Jérome Daurios, Vincent Denis, Laure Eupherte, Nathalie Ferriou-Darbois, Servane Fontaine, Gaël Gaborit, Claire Grosset-Grange, Eric Journot, Laurent Lamaignère, Thomas Lanternier, Eric Lavastre, Christophe Leymarié, Louis-André Lompré, Mélanie Mangeant, Cédric Maunier, Jérome Néauport, Etienne Perrot-Minnot, Gérard Razé, Stéphane Reyné, Claude Rouyer, Jean-Michel Sajer, Stéphane Seznec, Daniel Taroux, Sébastien Vermersch, Laurent Le Déroff

Proceedings Volume 8602, 86020G (2013) https://doi.org/10.1117/12.2004148

KEYWORDS: Wavefronts, Wave propagation, Optical components, Optical amplifiers, Laser optics, Mirrors, Numerical simulations, Spatial filters, Crystals, Near field optics

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Proceedings Article | 4 December 2012 Paper

Characterization of scratches on fused silica optics and a way to remove them

P. Cormont, T. Corbineau, Laurent Gallais, C. Hecquet, Laurent Lamaignère, J. Rullier

Proceedings Volume 8530, 853026 (2012) https://doi.org/10.1117/12.976839

KEYWORDS: Laser induced damage, Silica, Confocal microscopy, Carbon dioxide lasers, Polishing, UV optics, Microscopes, Laser damage threshold, Ultraviolet radiation, Solids

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Proceedings Article | 4 December 2012 Paper

Laser-induced surface damage density measurements with small and large beams: the representativeness light

L. Lamaignère, G. Dupuy, T. Donval

Proceedings Volume 8530, 85301F (2012) https://doi.org/10.1117/12.976840

KEYWORDS: Laser induced damage, Phase modulation, Optical components, High power lasers, Silica, Pulsed laser operation, Nonlinear optics, UV optics, Laser beam propagation, Oscilloscopes

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Proceedings Article | 23 November 2011 Paper

Self-laser conditioning of KDP and DKDP crystals

C. Maunier, M. Balas, T. Donval, L. Lamaignère, G. Duchateau, G. Mennerat

Proceedings Volume 8190, 819018 (2011) https://doi.org/10.1117/12.899184

KEYWORDS: Laser induced damage, Crystals, Resistance, High power lasers, Second-harmonic generation, Laser crystals, Frequency converters, Bulk lasers, Diffraction, Frequency conversion

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Proceedings Article | 21 February 2011 Paper

355 nm and 1064 nm-pulse mixing to identify the laser-induced damage mechanisms in KDP

Stéphane Reyné, Guillaume Duchateau, Jean-Yves Natoli, Laurent Lamaignère

Proceedings Volume 7937, 79370L (2011) https://doi.org/10.1117/12.872855

KEYWORDS: Laser induced damage, Absorption, Crystals, National Ignition Facility, Mie scattering, Resistance, Ionization, Plasma, 3D modeling, Potassium

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Proceedings Article | 2 December 2010 Paper

Effects of thermal annealing on KDP and DKDP on laser damage resistance at 3w

François Guillet, Bertrand Bertussi, Laurent Lamaignère, Cédric Maunier

Proceedings Volume 7842, 78421T (2010) https://doi.org/10.1117/12.868269

KEYWORDS: Annealing, Resistance, Laser induced damage, Thermal effects, Crystals, Crystal optics, Thermography, Diffraction, Laser crystals, Second-harmonic generation

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Proceedings Article | 29 November 2010 Paper

Identification of the laser-induced damage mechanisms in KDP by coupling 355nm and 1064nm nanosecond pulses

S. Reyné, G. Duchateau, J.-Y. Natoli, L. Lamaignère

Proceedings Volume 7842, 78420T (2010) https://doi.org/10.1117/12.867234

KEYWORDS: Laser induced damage, Absorption, Crystals, National Ignition Facility, Mie scattering, CCD cameras, Resistance, Ionization, Plasma, 3D modeling

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Proceedings Article | 29 November 2010 Paper

KDP crystal orientation influence on the nanosecond laser-induced damage at 1064nm

S. Reyné, G. Duchateau, J.-Y. Natoli, L. Lamaignère

Proceedings Volume 7842, 784210 (2010) https://doi.org/10.1117/12.867982

KEYWORDS: Laser induced damage, Crystals, Second-harmonic generation, Polarization, Laser crystals, Absorption, Mie scattering, CCD cameras, Spherical lenses, 3D modeling

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Proceedings Article | 29 November 2010 Paper

The effect of CO2 laser annealing on residual stress and on laser damage resistance for fused silica optics

P. Cormont, L. Gallais, L. Lamaignère, T. Donval, J. Rullier

Proceedings Volume 7842, 78422C (2010) https://doi.org/10.1117/12.867237

KEYWORDS: Carbon dioxide lasers, Annealing, Silica, Laser induced damage, Resistance, Optical components, Ultraviolet radiation, Glasses, National Ignition Facility, Nd:YAG lasers

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Proceedings Article | 31 December 2009 Paper

Laser-induced surface damage density measurements of fused silica optics: a parametric study

Laurent Lamaignère, Stéphane Reyné, Thierry Donval, Roger Courchinoux, Jean-Christophe Poncetta, Bertrand Bertussi, H. Bercegol

Proceedings Volume 7504, 75041C (2009) https://doi.org/10.1117/12.836346

KEYWORDS: Laser induced damage, Beam shaping, Silica, Excimer lasers, Nd:YAG lasers, Data analysis, Metrology, Gaussian beams, Resistance, Beam analyzers

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Proceedings Article | 18 May 2009 Paper

Laser damage densities measurements on fused silica optics: round-robin test at 351-355 nm

Laurent Lamaignère, Marc Loiseau, Thierry Donval, Roger Courchinoux, Stéphane Bouillet, Jean-Christophe Poncetta, Bertrand Bertussi, Hervé Bercegol

Proceedings Volume 7361, 73610M (2009) https://doi.org/10.1117/12.820580

KEYWORDS: Laser induced damage, Silica, Error analysis, Beam shaping, Optical testing, Optical components, Data analysis, Gaussian beams, Metrology, Nd:YAG lasers

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Proceedings Article | 18 May 2009 Paper

Toward a better understanding of multi-wavelength effects on KDP crystals

Stéphane Reyné, Marc Loiseau, Guillaume Duchateau, Jean-Yves Natoli, Laurent Lamaignère

Proceedings Volume 7361, 73610Z (2009) https://doi.org/10.1117/12.822852

KEYWORDS: Laser induced damage, Crystals, Laser crystals, National Ignition Facility, Modeling, Silica, Beam shaping, Lead, Laser scattering, Beam analyzers

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Proceedings Article | 30 December 2008 Paper

Optimizing fused silica polishing processes for 351nm high-power laser application

J. Néauport, C. Ambard, H. Bercegol, O. Cahuc, J. Champreux, J. Charles, P. Cormont, N. Darbois, P. Darnis, J. Destribats, E. Fargin, I. Iordanoff, R. Laheurte, L. Lamaignère, P. Legros, R. Mercier, F. Pilon

Proceedings Volume 7132, 71321I (2008) https://doi.org/10.1117/12.804414

KEYWORDS: Silica, Polishing, High power lasers, Magnetorheological finishing, Diamond, Etching, Laser development, Abrasives, Optical spheres, HF etching

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Proceedings Article | 30 December 2008 Paper

Effect of the temporal pulse duration on the initiation of damage sites on fused silica surfaces

B. Bertussi, P. Cormont, S. Palmier, G. Gaborit, L. Lamaignere, P. Legros, J.-L. Rullier

Proceedings Volume 7132, 71320A (2008) https://doi.org/10.1117/12.804411

KEYWORDS: Silica, Excimer lasers, Confocal microscopy, Nd:YAG lasers, Raster graphics, High power lasers, Laser induced damage, Pulsed laser operation, Resonators, Mirrors

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Proceedings Article | 30 December 2008 Paper

Effect of thermal annealing on laser damage resistance of KDP at 3ω

François Guillet, Bertrand Bertussi, David Damiani, Laurent Lamaignère, Audrey Surmin, K. Vallé, Cédric Maunier

Proceedings Volume 7132, 713211 (2008) https://doi.org/10.1117/12.804297

KEYWORDS: Annealing, Resistance, Laser induced damage, Thermal effects, Crystals, Second-harmonic generation, Pulsed laser operation, Laser crystals, Crystal optics, Laser optics

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Proceedings Article | 30 December 2008 Paper

Presentation and comparison of damage test procedures for fused silica and KDP crystals

L. Lamaignère, T. Donval, M. Loiseau, S. Bouillet, R. Courchinoux, J. Poncetta, Betrand Bertussi, H. Bercegol

Proceedings Volume 7132, 71320X (2008) https://doi.org/10.1117/12.804471

KEYWORDS: Crystals, Laser induced damage, Silica, Beam shaping, Error analysis, Pulsed laser operation, Data analysis, Optical components, Nd:YAG lasers, Gaussian beams

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A rasterscan test procedure [L. Lamaignère et al, Rev. Sci. Instrumen. 78, 103105 (2007)] has been implemented in order to determine low laser damage density of large aperture UV fused silica optics. This procedure was improved in terms of accuracy and repeatability and is now used for the determination of bulk damage density for KDP crystals. The large area (volume) scanned during tests permits to measure very low damage density. On small samples, small area are tested using the normalized 1/1 test procedure consisting on the irradiation of few sites at several fluences. The classical damage probability plot is converted in terms of damage density. The two testing procedures are complementary: the 1/1 mode is practical to test a wide fluence range while the rasterscan mode allows exploring low damage densities with higher accuracy. Tests have been carried out on several facilities using several pulse durations and spatial distributions. We describe the equipment, test procedure and data analysis to perform this damage test with small beams (Gaussian beams, about 1mm @ 1/e, and top hat beams). Then, beam overlap and beam shape are the two key parameters which are taken into account in order to determine damage density. After data analysis and treatment, a repeatable metrology has been obtained. Moreover, the consideration of error bars on defects distributions permits to compare data between these installations. This allows us to reach reproducibility, a necessary condition in order to share results and to make reliable predictions of laser damage resistance. Other tests are realized with larger beams (centimeter sized) and with a single shot. Due to a large beam contrast, a large fluence range is then covered. Then after data treatment, we find a good correlation between tests realised with small and large beams. This allows us to make tests with different laser characteristics (spectral modulations, pulse duration, laser polarisation) and then to study their influences on laser damage.

Proceedings Article | 25 September 2008 Paper

Characterizations of UV-laser damage on fused silica surfaces

Philippe Cormont, Stéphanie Palmier, Bertrand Bertussi, Roger Courchinoux, Gael Gaborit, Laurent Gallais, Laurent Lamaignère, Philippe Legros, Jean-Luc Rullier, Hervé Bercegol

Proceedings Volume 7102, 71020U (2008) https://doi.org/10.1117/12.797407

KEYWORDS: Excimer lasers, Confocal microscopy, Pulsed laser operation, Nd:YAG lasers, Silica, Laser induced damage, Polishing, Excimers, Mirrors, Laser development

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Proceedings Article | 18 December 2007 Paper

Comparison of ns and sub-ns laser conditioning of KDP and DKDP crystals for high-power lasers

C. Maunier, B. Bertussi, D. Damiani, T. Donval, G. Duchateau, A. Dyan, G. Gaborit, L. Lamaignère, X. Leborgne, M. Loiseau, H. Mathis, G. Raze

Proceedings Volume 6720, 67201L (2007) https://doi.org/10.1117/12.752826

KEYWORDS: Second-harmonic generation, Laser induced damage, Picosecond phenomena, Crystals, Laser crystals, High power lasers, Phase modulation, Laser scattering, Frequency converters, Scattering

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Proceedings Article | 18 December 2007 Paper

Effects of wavelengths combination on initiation and growth of laser-induced surface damage in SiO₂

L. Lamaignere, S. Reyne, M. Loiseau, J.-C. Poncetta, H. Bercegol

Proceedings Volume 6720, 67200F (2007) https://doi.org/10.1117/12.753057

KEYWORDS: Laser induced damage, Silica, Ultraviolet radiation, Plasma, Nd:YAG lasers, Optical components, Fusion energy, Photons, Pulsed laser operation, Energy efficiency

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Proceedings Article | 18 December 2007 Paper

Preliminary results on mitigation of KDP surface damage using the ball dimpling method

François Guillet, Bertrand Bertussi, Laurent Lamaignere, Xavier Leborgne, Benoît Minot

Proceedings Volume 6720, 672008 (2007) https://doi.org/10.1117/12.752822

KEYWORDS: Laser induced damage, Surface finishing, Crystals, Polishing, Laser damage threshold, Diamond, Bulk lasers, Silica, Abrasives, Glasses

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Proceedings Article | 18 January 2007 Paper

Study of the evolution of mechanical defects on silica samples under laser irradiation at 355 nm

M. Josse, H. Bercegol, R. Courchinoux, T. Donval, L. Lamaignère, B. Pussacq, J. L. Rullier

Proceedings Volume 6403, 64030E (2007) https://doi.org/10.1117/12.695453

KEYWORDS: Silica, Laser induced damage, Optical components, Laser irradiation, Optical microscopes, Surface finishing, Polishing, Raster graphics, High power lasers, Calibration

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Proceedings Article | 18 January 2007 Paper

Surface particulate contamination of the LIL optical components and their evolution under laser irradiation

S. Palmier, S. Garcia, L. Lamaignère, M. Loiseau, T. Donval, J. Rullier, I. Tovena, L. Servant

Proceedings Volume 6403, 64030V (2007) https://doi.org/10.1117/12.695442

KEYWORDS: Particles, Silica, Optical components, Antireflective coatings, Pollution, Minerals, Contamination, Laser irradiation, Scanning electron microscopy, Laser induced damage

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Proceedings Article | 15 January 2007 Paper

Characterization of KDP crystals used in large aperture doublers and triplers

Martynas Barkauskas, Andrius Melninkaitis, Darius Mikšys, Loreta Meslinaitė, Rimantas Grigonis, Valdas Sirutkaitis, Hervé Bercegol, Laurent Lamaignère

Proceedings Volume 6403, 64031V (2007) https://doi.org/10.1117/12.696249

KEYWORDS: Crystals, Laser crystals, Absorption, Polarization, Laser damage threshold, Laser induced damage, Pulsed laser operation, Nonlinear crystals, Nd:YAG lasers, Ultraviolet radiation

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Proceedings Article | 15 January 2007 Paper

Laser conditioning of KDP crystals using excimer and Nd:YAG lasers

B. Bertussi, D. Damiani, M. Pommies, A. Dyan, H. Piombini, X. Leborgne, A. During, L. Lamaignere, G. Gaborit, M. Loiseau, S. Mardelle, T. Donval

Proceedings Volume 6403, 64031N (2007) https://doi.org/10.1117/12.695434

KEYWORDS: Excimer lasers, Crystals, Laser crystals, Nd:YAG lasers, Laser induced damage, Excimers, Laser scattering, Charge-coupled devices, Scattering, Photodiodes

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Proceedings Article | 7 February 2006 Paper

Effects of scratch speed on laser-induced damage

M. Josse, J.L. Rullier, R. Courchinoux, T. Donval, L. Lamaignère, H. Bercegol

Proceedings Volume 5991, 599106 (2006) https://doi.org/10.1117/12.638762

KEYWORDS: Laser induced damage, Silica, Laser irradiation, Microscopes, Optical components, Surface finishing, Polishing, Optical microscopes, High power lasers, Nd:YAG lasers

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Proceedings Article | 7 February 2006 Paper

Filamentation and surface damage in fused silica with single-mode and multi-mode pulses

Hervé Bercegol, Laurent Lamaignère, Vincent Cavaro, Marc Loiseau

Proceedings Volume 5991, 59911Z (2006) https://doi.org/10.1117/12.638480

KEYWORDS: Silica, Nd:YAG lasers, Electrostriction, Scattering, Kerr effect, High power lasers, Resistance, National Ignition Facility, Polishing

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Proceedings Article | 7 February 2006 Paper

Influence of the cut angle on the laser damage threshold of KDP

Hervé Piombini, Matthieu Pommies, David Damiani, Hervé Mathis, Laurent Lamaignere, Thierry Donval, Marc Loiseau, Jérémy Capoulade, Bertrand Bertussi, Jean-Yves Natoli

Proceedings Volume 5991, 59911V (2006) https://doi.org/10.1117/12.637890

KEYWORDS: YAG lasers, Excimer lasers, Laser damage threshold, Second-harmonic generation, Crystals, Pulsed laser operation, Laser systems engineering, Photodiodes, Laser induced damage, Laser scattering

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Proceedings Article | 7 February 2006 Paper

Study of laser interaction with aluminum contaminant on fused silica

S. Palmier, I. Tovena, L. Lamaignère, J.L. Rullier, J. Capoulade, B. Bertussi, J.Y. Natoli, L. Servant

Proceedings Volume 5991, 59910R (2006) https://doi.org/10.1117/12.639141

KEYWORDS: Aluminum, Silica, Absorption, Microscopy, Laser induced damage, Optical lithography, Microscopes, High power lasers, Contamination, Particles

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Proceedings Article | 6 October 2005 Paper

Nonlinear absorption and defects formation in KDP crystals used for large aperture doublers and triplers

Martynas Barkauskas, Andrius Melninkaitis, Modestas Šinkevičius, Arūnas Čiburys, Roaldas Gadonas, Valdas Sirutkaitis, Hervé Bercegol, Laurent Lamaignère

Proceedings Volume 5949, 59491T (2005) https://doi.org/10.1117/12.624183

KEYWORDS: Crystals, Absorption, Nonlinear crystals, Laser crystals, Polarization, Q switched lasers, Picosecond phenomena, Nonlinear optics, Time resolved spectroscopy, Temperature metrology

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Proceedings Article | 21 February 2005 Paper

Characterization of the KDP crystals used in large aperture doublers and triplers

Andrius Melninkaitis, Modestas Sinkevicius, Tadas Lipinskas, Nerijus Slavinskis, Valdas Sirutkaitis, Herve Bercegol, Laurent Lamaignere

Proceedings Volume 5647, (2005) https://doi.org/10.1117/12.585350

KEYWORDS: Crystals, Absorption, Nonlinear crystals, Polarization, Laser crystals, Temperature metrology, Nonlinear optics, Q switched lasers, Laser systems engineering, Polishing

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Proceedings Article | 21 February 2005 Paper

Integrated facility of UV and IR laser process to enhance laser damage resistance of large scale 3w optics

Annelise During, Laurent Lamaignere, Philippe Bouchut, Herve Piombini

Proceedings Volume 5647, (2005) https://doi.org/10.1117/12.585001

KEYWORDS: Silica, Laser induced damage, Raster graphics, Resistance, Excimer lasers, Gas lasers, YAG lasers, Pulsed laser operation, Laser processing, UV optics

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Proceedings Article | 21 February 2005 Paper

Measurement and prediction of rear surface damage in fused silica windows caused by UV nanosecond pulses

Herve Bercegol, Thierry Donval, Benjamin Forestier, Laurent Lamaignere, Marc Loiseau, Gerard Raze

Proceedings Volume 5647, (2005) https://doi.org/10.1117/12.585243

KEYWORDS: Silica, Ultraviolet radiation, Modulation, Laser induced damage, Polarization, Light wave propagation, Resistance, National Ignition Facility, Polishing, Surface finishing

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Proceedings Article | 21 February 2005 Paper

Computer-controlled measurements of laser-induced damage statistics on large optics

Michel Josse, Roger Courchinoux, Laurent Lamaignere, Jean-Christophe Poncetta, Thierry Donval, Herve Bercegol

Proceedings Volume 5647, (2005) https://doi.org/10.1117/12.585272

KEYWORDS: Laser induced damage, Argon ion lasers, CCD cameras, Nd:YAG lasers, Statistical analysis, Optical testing, Pulsed laser operation, Raster graphics, Beam shaping, Data analysis

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Proceedings Article | 21 February 2005 Paper

Excimer laser conditionning of KDP: influence of the laser parameters and crystal orientation on the laser damage threshold

David Damiani, Herve Piombini, Daniel Plessis, Thierry Donval, Laurent Lamaignere, Marc Loiseau

Proceedings Volume 5647, (2005) https://doi.org/10.1117/12.584707

KEYWORDS: Excimer lasers, Laser damage threshold, Laser crystals, Crystals, Resistance, Laser induced damage, Scattering, Diagnostics, Laser scattering, Optical components

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Proceedings Article | 20 September 2004 Paper

Enhanced optical damage resistance of fused silica surfaces using UV laser conditioning and CO2 laser treatment

Laurent Lamaignere, Herve Bercegol, Philippe Bouchut, Annelise During, Jerome Neauport, Herve Piombini, Gerard Raze

Proceedings Volume 5448, (2004) https://doi.org/10.1117/12.547071

KEYWORDS: Silica, Laser induced damage, Polishing, Carbon dioxide lasers, Resistance, Laser optics, Nd:YAG lasers, Laser development, Ultraviolet radiation, Excimer lasers

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Proceedings Article | 10 June 2004 Paper

Self-focusing and surface damage in fused-silica windows of variable thickness with UV nanosecond pulses

Herve Bercegol, Alain Boscheron, C. Lepage, Elizabeth Mazataud, Thierry Donval, Laurent Lamaignère, Marc Loiseau, Gerard Raze, Caroline Sudre

Proceedings Volume 5273, (2004) https://doi.org/10.1117/12.524841

KEYWORDS: Polarization, Modulation, Silica, Phase modulation, Pulsed laser operation, Ultraviolet radiation, Frequency modulation, Laser scattering, Scattering, Refraction

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Proceedings Article | 10 June 2004 Paper

Laser-induced damage growth with small and large beams: comparison between laboratory experiments and large-scale laser data

Roger Courchinoux, Gerard Raze, Caroline Sudre, Michel Josse, Alain Boscheron, C. Lepage, Elizabeth Mazataud, Edouard Bordenave, Laurent Lamaignere, Marc Loiseau, Thierry Donval, Herve Bercegol

Proceedings Volume 5273, (2004) https://doi.org/10.1117/12.524844

KEYWORDS: Laser induced damage, Pulsed laser operation, Silica, Laser sources, Statistical analysis, Nd:YAG lasers, Polarizers, Microscopes, Motion controllers, Optical components

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Proceedings Article | 10 June 2004 Paper

The impact of laser damage on the lifetime of optical components in fusion lasers

Herve Bercegol, Philippe Bouchut, Laurent Lamaignere, Bruno Le Garrec, Gerard Raze

Proceedings Volume 5273, (2004) https://doi.org/10.1117/12.524843

KEYWORDS: Laser induced damage, Silica, Optical components, Laser welding, National Ignition Facility, Laser damage threshold, High power lasers, Dielectric polarization, Standards development, Laser optics

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Proceedings Article | 7 April 2004 Paper

Laser damage measurements on optics: from small to large beams, from samples to large aperture components

Laurent Lamaignere, Marc Loiseau, Roger Courchinoux, Gerard Raze, Caroline Sudre, Michel Josse, Thierry Donval, Herve Bercegol

Proceedings Volume 5478, (2004) https://doi.org/10.1117/12.558520

KEYWORDS: Laser induced damage, Optical testing, Statistical analysis, Optical components, High power lasers, Analytical research

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Proceedings Article | 26 February 2004 Paper

Building high-damage-threshold surfaces at 351 nm

Jerome Neauport, Denis Valla, Jacky Duchesne, Philippe Bouchut, Laurent Lamaignere, Janick Bigarre, Nathalie Daurios

Proceedings Volume 5252, (2004) https://doi.org/10.1117/12.512956

KEYWORDS: Polishing, Silica, Abrasives, Surface finishing, Laser induced damage, Etching, Magnetorheological finishing, Laser damage threshold, Optics manufacturing, Manufacturing

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Proceedings Article | 26 February 2004 Paper

Automatic damage test benches: from samples to large-aperture optical components

Marc Loiseau, Laurent Lamaignere, Roger Courchinoux, Gerard Raze, Caroline Sudre, Michel Josse, Thierry Donval, Herve Bercegol

Proceedings Volume 5252, (2004) https://doi.org/10.1117/12.512939

KEYWORDS: Laser induced damage, Silica, Optical components, Crystals, High power lasers, Statistical analysis, Laser optics, Ultraviolet radiation, Optical testing, Mirrors

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