Dr. Driss Touahri Profile

Dr. Driss Touahri

Senior Optical Designer at Viavi Solutions

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Author

Publications (13)

Proceedings Article | 7 August 2014 Paper

Diamond machining of ZnSe grisms for the Near Infrared Imager and Slitless Spectrograph (NIRISS) onboard JWST

Paul Kuzmenko, Steve Little, Loïc Albert, David Aldridge, René Doyon, Michael Maszkiewicz, Driss Touahri

Proceedings Volume 9151, 915159 (2014) https://doi.org/10.1117/12.2054420

KEYWORDS: Diffraction, Diffraction gratings, Spindles, James Webb Space Telescope, Germanium, Surface finishing, Diamond, Polishing, Diamond machining, Near infrared

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Proceedings Article | 17 October 2013 Paper

A static birefringent interferometer for the measurement of upper atmospheric winds

Jeffery Langille, William Ward, William Gault, Alan Scott, Driss Touahri, Andrew Bell

Proceedings Volume 8890, 88900C (2013) https://doi.org/10.1117/12.2031965

KEYWORDS: Interferometers, Doppler effect, Wind measurement, Calibration, Wave plates, Signal to noise ratio, Visibility, Prototyping, Crystals, Charge-coupled devices

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Proceedings Article | 21 September 2012 Paper

The JWST Fine Guidance Sensor (FGS) and Near-Infrared Imager and Slitless Spectrograph (NIRISS)

René Doyon, John Hutchings, Mathilde Beaulieu, Loic Albert, David Lafrenière, Chris Willott, Driss Touahri, Neil Rowlands, Micheal Maszkiewicz, Alex Fullerton, Kevin Volk, André Martel, Pierre Chayer, Anand Sivaramakrishnan, Roberto Abraham, Laura Ferrarese, Ray Jayawardhana, Doug Johnstone, Michael Meyer, Judith Pipher, Marcin Sawicki

Proceedings Volume 8442, 84422R (2012) https://doi.org/10.1117/12.926578

KEYWORDS: Sensors, Spectroscopy, Imaging spectroscopy, Stars, Exoplanets, James Webb Space Telescope, Atmospheric modeling, Imaging systems, Point spread functions, Spectrographs

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Proceedings Article | 28 August 2010 Paper

Tunable filter imager for JWST: etalon opto-mechanical design and test results

D. Touahri, P. Cameron, C. Evans, C. Haley, Z. Osman, A. Scott, N. Rowlands

Proceedings Volume 7808, 78081K (2010) https://doi.org/10.1117/12.860849

KEYWORDS: Fabry–Perot interferometers, Coating, James Webb Space Telescope, Tunable filters, Imaging systems, Ferroelectric materials, Cryogenics, Sensors, Infrared imaging, Infrared radiation

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Proceedings Article | 20 August 2010 Paper

Spectroscopic ellipsometry of a-Si/SiO2 large waveband coating for the JWST-FGS-TFI etalon plates fabrication

Michel Poirier, Clinton Evans, Craig Haley, Driss Touahri, Rene Doyon

Proceedings Volume 7786, 77860M (2010) https://doi.org/10.1117/12.863034

KEYWORDS: Data modeling, Optical properties, Silica, Refractive index, Amorphous silicon, Oscillators, Transmittance, Absorption, Coating, Fabry–Perot interferometers

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Proceedings Article | 11 August 2010 Paper

Characterization of the tunable filter imager etalon on the JWST Fine Guidance Sensor

Craig Haley, Clinton Evans, Eric Grant, Rodney Norman, Zeljko Osman, Neil Rowlands, Niladry Roy, Alan Scott, Driss Touahri

Proceedings Volume 7731, 77313L (2010) https://doi.org/10.1117/12.857906

KEYWORDS: Fabry–Perot interferometers, Electrochemical etching, Ferroelectric materials, James Webb Space Telescope, Sensors, Electronics, Tunable filters, Control systems, Reflectivity, Imaging systems

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Proceedings Article | 5 August 2010 Paper

The JWST tunable filter imager (TFI)

R. Doyon, J. Hutchings, N. Rowlands, C. Evans, E. Greenberg, C. Haley, A. Scott, D. Touahri, M. Beaulieu, D. Lafrenière, R. Abraham, E. Barton, P. Chayer, L. Ferrarese, A. Fullerton, R. Jayawardhana, D. Johnstone, A. Martel, A. W. M. R. Meyer, J. Pipher, K. Saad, M. Sawicki, A. Sivaramakrishnan, K. Volk

Proceedings Volume 7731, 77310F (2010) https://doi.org/10.1117/12.857382

KEYWORDS: Fabry–Perot interferometers, James Webb Space Telescope, Coronagraphy, Coating, Sensors, Exoplanets, Imaging systems, Tunable filters, Spectral resolution, Space telescopes

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Proceedings Article | 29 August 2008 Paper

Design and fabrication of large spectral waveband mirror coatings for scanning Fabry-Perot etalons

Clinton Evans, Michel Poirier, Alan Scott, Driss Touahri, Samir Ilias, Rene Doyon

Proceedings Volume 7067, 706703 (2008) https://doi.org/10.1117/12.795342

KEYWORDS: Fabry–Perot interferometers, Mirrors, Silica, Amorphous silicon, Reflectivity, Spectral resolution, Sensors, Refractive index, Silicon, Data modeling

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Proceedings Article | 12 July 2008 Paper

JWST tunable filter imager: etalon prototype test results

D. Touahri, P. Cameron, C. Evans, E. Greenberg, N. Rowlands, A. Scott, R. Doyon, M. Beaulieu, O. Djazovski

Proceedings Volume 7010, 701038 (2008) https://doi.org/10.1117/12.790282

KEYWORDS: Fabry–Perot interferometers, Ferroelectric materials, Coating, James Webb Space Telescope, Prototyping, Tunable filters, Sensors, Imaging systems, Cryogenics, Spectroscopy

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Proceedings Article | 12 July 2008 Paper

The JWST tunable filter imager (TFI)

R. Doyon, N. Rowlands, J. Hutchings, C. Evans, E. Greenberg, A. Scott, D. Touhari, M. Beaulieu, R. Abraham, L. Ferrarese, A. Fullerton, R. Jayawardhana, D. Johnston, M. R. Meyer, J. Pipher, M. Sawicki

Proceedings Volume 7010, 70100X (2008) https://doi.org/10.1117/12.789504

KEYWORDS: Coronagraphy, James Webb Space Telescope, Coating, Fabry–Perot interferometers, Imaging systems, Exoplanets, Tunable filters, Sensors, Reflectivity, Mirrors

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Proceedings Article | 8 October 1998 Paper

Compact frequency standard at 1556 nm based on the two-photon transition in rubidium at 778 nm

Michel Poulin, Christine Latrasse, Driss Touahri, Michel Tetu, Carl Paquet

Proceedings Volume 3415, (1998) https://doi.org/10.1117/12.326636

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Proceedings Article | 26 April 1995 Paper

Performance of a GaAlAs laser diode stabilized on a hyperfine component of two-photon transitions in rubidium at 778 nm

Raymond Felder, D. Touahri, Ouali Acef, L. Hilico, Jean-Jacques Zondy, Andre Clairon, Beatrice de Beauvoir, Francois Biraben, Lucile Julien, Francois Nez, Yves Millerioux

Proceedings Volume 2378, (1995) https://doi.org/10.1117/12.208244

KEYWORDS: Rubidium, Semiconductor lasers, Iron, Metrology, Laser stabilization, Measurement devices, Diodes, Light emitting diodes, Standards development, Laser sources

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Proceedings Article | 26 April 1995 Paper

Absolute frequency measurement of a diode laser locked on the 5S1/2-5D5/2 two-photon transitions of rubidium (lambda equals 778.1 nm, nu equals 385.3 THz)

Jean-Jacques Zondy, D. Touahri, Ouali Acef, L. Hilico, M. Abed, Andre Clairon, Yves Millerioux, Raymond Felder, Beatrice de Beauvoir, Francois Nez, Francois Biraben, Lucile Julien

Proceedings Volume 2378, (1995) https://doi.org/10.1117/12.208228

KEYWORDS: Semiconductor lasers, Crystals, Rubidium, Diodes, Terahertz radiation, Laser crystals, Upconversion, Second-harmonic generation, Silicon, Visible radiation

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Showing 5 of 13 publications

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