Dr. Hervé Bercegol Profile

Dr. Hervé Bercegol

at Commissariat à l'Énergie Atomique

SPIE Involvement:

Author

Publications (47)

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

Read Abstract +

Proceedings Article | 18 May 2009 Paper

Laser-induced damage studies in optical elements using X-ray laser interferometric microscopy

D. Margarone, M. Kozlova, J. Nejdl, B. Rus, T. Mocek, P. Homer, J. Polan, M. Stupka, G. Jamelot, K. Cassou, S. Kazamias, A. Klisnick, D. Ros, H. Bercegol, C. Danson, S. Hawkes

Proceedings Volume 7361, 73610N (2009) https://doi.org/10.1117/12.823302

KEYWORDS: Interferometry, X-ray lasers, Laser induced damage, Pellicles, X-rays, X-ray microscopy, Mirrors, Microscopy, Silica, Laser optics

Read Abstract +

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

Read Abstract +

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

Read Abstract +

Proceedings Article | 30 December 2008 Paper

H. Bercegol, P. Grua

Proceedings Volume 7132, 71321B (2008) https://doi.org/10.1117/12.804419

KEYWORDS: Silica, Laser induced damage, Absorption, Electrons, Spherical lenses, Plasma, Laser energy, Dielectrics, Mechanics, Laser damage threshold

Read Abstract +

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

Read Abstract +

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

Read Abstract +

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

Read Abstract +

Proceedings Article | 18 December 2007 Paper

Progress in the understanding of fracture related laser damage of fused silica

H. Bercegol, P. Grua, D. Hébert, J-P. Morreeuw

Proceedings Volume 6720, 672003 (2007) https://doi.org/10.1117/12.752830

KEYWORDS: Silica, Laser induced damage, Absorption, Dielectrics, Laser energy, Temperature metrology, Polarization, Electromagnetism, Polishing, Surface finishing

Read Abstract +

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

Read Abstract +

Proceedings Article | 15 January 2007 Paper

Mitigation of laser damage on fused silica surfaces with a variable profile CO2 laser beam

Annelise During, Philippe Bouchut, Jean-Guillaume Coutard, Christophe Leymarie, Hervé Bercegol

Proceedings Volume 6403, 640323 (2007) https://doi.org/10.1117/12.695446

KEYWORDS: Silica, Laser induced damage, Carbon dioxide lasers, Resistance, YAG lasers, Nd:YAG lasers, Diagnostics, Carbon monoxide, Gas lasers, Optical components

Read Abstract +

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

Read Abstract +

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

Read Abstract +

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

Read Abstract +

Proceedings Article | 3 February 2006 Paper

Study of femtosecond laser interaction with gold nanoparticles embedded in dielectrics

P. Palyanov, F. Quere, Ph. Martin, P. Grua, J. Morreeuw, H. Bercegol

Proceedings Volume 5975, 59750Q (2006) https://doi.org/10.1117/12.675570

Read Abstract +

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

Read Abstract +

Proceedings Article | 14 September 2005 Paper

Advanced optical damage studies using x-ray laser interferometric microscopy

Bedrich Rus, Gerard Jamelot, Herve Bercegol, Michaela Kozlova, Tomas Mocek, Pavel Homer, Jiri Polan, Michal Stupka, Kevin Cassou, Sophie Kazamias, Annie Klisnick, David Ros, Colin Danson, Steve Hawkes

Proceedings Volume 5919, 59190K (2005) https://doi.org/10.1117/12.619268

KEYWORDS: Interferometry, Pellicles, X-rays, Mirrors, X-ray lasers, Microscopy, X-ray microscopy, Silica, Laser induced damage, X-ray optics

Read Abstract +

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

Read Abstract +

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

Read Abstract +

Proceedings Article | 21 February 2005 Paper

Fluorescence of mitigated laser damage in fused silica

Pierre Barritault, Philippe Bouchut, Herve Bercegol, Patrick Chaton, Guillaume Ravel

Proceedings Volume 5647, (2005) https://doi.org/10.1117/12.585045

KEYWORDS: Luminescence, Silica, Laser induced damage, Cartography, Spectroscopy, Gas lasers, Carbon monoxide, Optical components, Absorption, Fluorescence spectroscopy

Read Abstract +

Proceedings Article | 21 February 2005 Paper

Observation of laser-induced damage on fused silica initiated by scratches

Herve Bercegol, Roger Courchinoux, Michel Josse, Jean Luc Rullier

Proceedings Volume 5647, (2005) https://doi.org/10.1117/12.585290

KEYWORDS: Silica, Laser induced damage, Calibration, Nd:YAG lasers, Surface finishing, Argon ion lasers, High power lasers, Laser welding, Polishing, Optical microscopes

Read Abstract +

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

Read Abstract +

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

Read Abstract +

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

Read Abstract +

Proceedings Article | 10 June 2004 Paper

Interaction of an intense laser field with a dielectric containing metallic nanoparticles

Fabien Quere, Pierre Grua, Herve Bercegol, Philippe Martin, Jean Pierre Morreeuw, Jean Luc Rullier, Emmanuel Cottancin, Michel Pellarin

Proceedings Volume 5273, (2004) https://doi.org/10.1117/12.524727

KEYWORDS: Silica, Nanoparticles, Electrons, Gold, Dielectrics, Phase shifts, Absorption, Interferometry, Refractive index, Laser energy

Read Abstract +

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

Read Abstract +

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

Read Abstract +

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

Read Abstract +

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

Read Abstract +

Proceedings Article | 25 February 2004 Paper

Correlation between laser-induced damage and nanosized absorbing defects

Bertrand Bertussi, Jean-Yves Natoli, Annelise During, Mireille Commandre, Laurent Gallais, Jean Luc Rullier, Herve Bercegol, Philippe Bouchut

Proceedings Volume 5250, (2004) https://doi.org/10.1117/12.513373

KEYWORDS: Particles, Gold, Absorption, Microscopes, Silica, Laser induced damage, Laser applications, Optical components, Laser development, Pulsed laser operation

Read Abstract +