Dr. François Piché Profile

Dr. François Piché

Development Associates

SPIE Involvement:

Author

Area of Expertise:

Optical Manufacturing Technologies , Telescope Systems , Directed Energy Systems

Publications (9)

Proceedings Article | 17 March 2023 Presentation + Paper

Surface and bulk damage resistance of calcium fluoride optics assessed by x-ray induced color centers

Jue Wang, François Piché, Eileen Fanning

Proceedings Volume 12402, 1240208 (2023) https://doi.org/10.1117/12.2650614

KEYWORDS: X-rays, Crystals, X-ray optics, Surface finishing, Resistance, Optical surfaces, Calcium, Fluoride, Color centers, Polishing

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Proceedings Article | 16 October 2017 Paper

New high-precision deep concave optical surface manufacturing capability

François Piché, Chris Maloney, Steve VanKerkhove, Chris Supranowicz, Paul Dumas, Keith Donohue

Proceedings Volume 10448, 104480H (2017) https://doi.org/10.1117/12.2279809

KEYWORDS: Optical spheres, Polishing, Aspheric lenses, Optics manufacturing, Magnetorheological finishing, Surface finishing, Metrology, Aspheric optics, Manufacturing, Mirrors

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Proceedings Article | 13 September 2012 Paper

Game-changing approaches to affordable advanced lightweight mirrors II: new cases analyzed for extreme ZERODUR lightweighting and relief from the classical polishing parameter constraint

Tony Hull, Thomas Westerhoff, John Pepi, Ralf Jedamzik, George Gardopee, François Piché, Andrew Clarkson, Antoine Leys, Martin Schaefer, Volker Seibert

Proceedings Volume 8450, 845050 (2012) https://doi.org/10.1117/12.926807

KEYWORDS: Mirrors, Lightweight mirrors, Space telescopes, Polishing, Telescopes, Magnetorheological finishing, Optical fabrication, Glasses, Zerodur, Metrology

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Proceedings Article | 12 October 2011 Paper

Game-changing approaches to affordable advanced lightweight mirrors: Extreme Zerodur lightweighting and relief from the classical polishing parameter constraint

Tony Hull, Andrew Clarkson, George Gardopee, Ralf Jedamzik, Antoine Leys, John Pepi, François Piché, Martin Schäfer, Volker Seibert, Armin Thomas, Thomas Werner, Thomas Westerhoff

Proceedings Volume 8125, 81250U (2011) https://doi.org/10.1117/12.896571

KEYWORDS: Mirrors, Polishing, Metrology, Lightweight mirrors, Magnetorheological finishing, Manufacturing, Finite element methods, Information operations, Zerodur

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Proceedings Article | 2 August 2000 Paper

Commissioning experience with the 9.2-m Hobby-Eberly Telescope

Thomas Barnes, Mark Adams, John Booth, Mark Cornell, Niall Gaffney, James Fowler, Gary Hill, Grant Hill, Craig Nance, Francois Piche, Lawrence Ramsey, Randall Ricklefs, William Spiesman, P. Worthington

Proceedings Volume 4004, (2000) https://doi.org/10.1117/12.393924

KEYWORDS: Telescopes, Image segmentation, Mirrors, Control systems, Domes, Simulation of CCA and DLA aggregates, Image quality, Cameras, Computing systems, Camera shutters

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Proceedings Article | 21 August 1998 Paper

Cambridge OH suppression instrument (COHSI): status after first commissioning run

Kimberly Ennico, Ian Parry, Matthew Kenworthy, Richard Ellis, Craig Mackay, Martin Beckett, Alfonso Aragon-Salamanca, Karl Glazebrook, J. Brinchmann, Jim Pritchard, Steve Medlen, Francois Piche, Richard McMahon, Fausto Cortecchia

Proceedings Volume 3354, (1998) https://doi.org/10.1117/12.317329

KEYWORDS: Spectrographs, Mirrors, Telescopes, Reflectivity, Optical fibers, Cryogenics, Gold, Infrared telescopes, Space telescopes, Optical filters

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Proceedings Article | 21 August 1998 Paper

Infrared imaging and spectroscopy with HAWAII and PICNIC arrays

Craig Mackay, Martin Beckett, Richard McMahon, Ian Parry, Francois Piche, Kimberly Ennico, Matthew Kenworthy, Richard Ellis, Alfonso Aragon-Salamanca

Proceedings Volume 3354, (1998) https://doi.org/10.1117/12.317260

KEYWORDS: Transistors, Sensors, Charge-coupled devices, Amplifiers, Imaging spectroscopy, Capacitors, Electrons, Silicon, Electronics, Spectroscopy

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Proceedings Article | 21 March 1997 Paper

CIRSI: the Cambridge Infrared Survey Instrument

Martin Beckett, Craig Mackay, Richard McMahon, Ian Parry, Francois Piche, Richard Ellis

Proceedings Volume 2871, (1997) https://doi.org/10.1117/12.269003

KEYWORDS: Cameras, Telescopes, Charge-coupled devices, Astronomy, Sensors, Infrared radiation, Mercury cadmium telluride, Galactic astronomy, Stars, Imaging systems

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Proceedings Article | 21 March 1997 Paper

COHSI: the Cambridge OH Suppression Instrument

Francois Piche, Ian Parry, Kimberly Ennico, Richard Ellis, Jim Pritchard, Craig Mackay, Richard McMahon

Proceedings Volume 2871, (1997) https://doi.org/10.1117/12.269025

KEYWORDS: Telescopes, Mirrors, Cameras, Spectrographs, Spectroscopy, Imaging spectroscopy, Astronomical imaging, Cryogenics, Spectral resolution, Space telescopes

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Showing 5 of 9 publications

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