Dr. Shouleh Nikzad Profile

Dr. Shouleh Nikzad

JPL Fellow and Lead Detectors and Systems at Jet Propulsion Lab

SPIE Involvement:

Awards Committee | Conference Chair | Editorial Board Member: Journal of Astronomical Telescopes, Instruments, and Systems | Author | Editor

Publications (75)

Proceedings Article | 27 September 2023 Presentation

Presentation

Ultraviolet CMOS sensors with integrated filter coatings for the UVEX mission

John Hennessy, Robin Rodríguez, April Jewell, Michael Hoenk, Shouleh Nikzad, Brian Grefenstette, Timothee Greffe, Roger Smith, Hannah Earnshaw, Fiona Harrison

Proceedings Volume 12678, 126780K (2023) https://doi.org/10.1117/12.2677968

KEYWORDS: Optical coatings, Ultraviolet radiation, Tunable filters, CMOS sensors, Atomic layer deposition, Far ultraviolet, Optical sensors, Fabrication, Dielectrics, Coating thickness

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Proceedings Article | 27 September 2023 Presentation

Presentation

FIREBall-2 UV balloon telescope in-flight calibration system

Jessica Li, Nazende Kerkeser, Aafaque Khan, Simran Agarwal, Erika Hamden, David Schiminovich, Haeun Chung, Vincent Picouet, Drew Miles, Keri Hoadley, Ignacio Cevallos-Aleman, Harrison Bradley, Olivia Jones, D. Christopher Martin, Marty Crabill, Trenton Brendel, Shouleh Nikzad, Nicolas Bray, Johan Montel, Gillian Kyne, Zeren Lin, Philippe Balard, Patrick Blanchard, Charles-Antoine Chevrier, Alain Peus, Didier Vibert, Nicole Melso, David Valls-Gabaud

Proceedings Volume 12678, 1267804 (2023) https://doi.org/10.1117/12.2676583

KEYWORDS: Calibration, Ultraviolet telescopes, Ultraviolet radiation, Telescopes, Balloons, Zinc, Spectrographs, Emission wavelengths, Camera shutters, Sensors

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SPIE Journal Paper | 27 December 2022 Open Access

Open Access

Hyperion: the origin of the stars. A far UV space telescope for high-resolution spectroscopy over wide fields

Erika Hamden, David Schiminovich, Shouleh Nikzad, Neal Turner, Blakesley Burkhart, Thomas Haworth, Keri Hoadley, Jinyoung Serena Kim, Shmuel Bialy, Geoff Bryden, Haeun Chung, Nia Imara, Rob Kennicutt, Jorge Pineda, Shuo Kong, Yasuhiro Hasegawa, Ilaria Pascucci, Benjamin Godard, Mark Krumholz, Min-Young Lee, Daniel Seifried, Amiel Sternberg, Stefanie Walch, Miles Smith, Stephen Unwin, Elizabeth Luthman, Alina Kiessling, James McGuire, Mina Rais-Zadeh, Michael Hoenk, Thomas Pavlak, Carlos Vargas, Daewook Kim

JATIS, Vol. 8, Issue 04, 044008, (December 2022) https://doi.org/10.1117/12.10.1117/1.JATIS.8.4.044008

KEYWORDS: Stars, Ultraviolet radiation, Clouds, Far ultraviolet, Space telescopes, Fluorescence, Molecules, Equipment, Galactic astronomy, Spectroscopy

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SPIE Journal Paper | 25 November 2022 Open Access

Open Access

Balloon-borne FIREBall-2 ultraviolet spectrograph stray light control based on nonsequential reverse modeling of on-sky data

Trenton Brendel, Aafaque Khan, Simran Agarwal, Heejoo Choi, Daewook Kim, Erika Hamden, Vincent Picouet, D. Christopher Martin, Bruno Milliard, David Schiminovich, Shouleh Nikzad, Jean Evrard, Nicolas Bray, Johan Montel, Keri Hoadley, Drew Miles, Gillian Kyne, Jessica Li, Zeren Lin, Haeun Chung, Philippe Balard, Patrick Blanchard, Marty Crabill, Charles-Antoine Chevrier, Alain Peus, Ignacio Cevallos-Aleman, Olivia Jones, Harrison Bradley, Naz Ipek Kerkeser, Matthew Werneken, Didier Vibert, Nicole Melso, David Valls-Gabaud

JATIS, Vol. 8, Issue 04, 048001, (November 2022) https://doi.org/10.1117/12.10.1117/1.JATIS.8.4.048001

KEYWORDS: Baffles, Stray light, Sensors, Spectrographs, Mirrors, Balloons, Ultraviolet radiation, Stray light control, Tongue, Light scattering

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Proceedings Article | 31 August 2022 Presentation + Paper

Presentation + Paper

The Polstar high resolution spectropolarimetry MIDEX mission

Paul Scowen, Richard Ignace, Ken Gayley, Gopal Vasudevan, Robert Woodruff, Coralie Neiner, Scott Richardson, Alison Nordt, Tony Hull, Shouleh Nikzad, Charles Shapiro

Proceedings Volume 12181, 1218106 (2022) https://doi.org/10.1117/12.2630103

KEYWORDS: Stars, Polarization, Polarimetry, Ultraviolet radiation, Staring arrays, Calibration, Mirrors, Spectroscopy, Spectral resolution, Modulators

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Proceedings Article | 31 August 2022 Paper

Paper

The UV-SCOPE mission: ultraviolet spectroscopic characterization of planets and their environments

David Ardila, Evgenya Shkolnik, John Ziemer, Mark Swain, James Owen, Michael Line, R. O. Parke Loyd, R. Glenn Sellar, Travis Barman, Courtney Dressing, William Frazier, April Jewell, Robert Kinsey, Carl Liebe, Joshua Lothringer, Luz Maria Martinez-Sierra, James McGuire, Victoria Meadows, Ruth Murray-Clay, Shouleh Nikzad, Sarah Peacock, Hilke Schlichting, David Sing, Kevin Stevenson, Yen-Hung Wu

Proceedings Volume 12181, 1218104 (2022) https://doi.org/10.1117/12.2629000

KEYWORDS: Planets, Ultraviolet radiation, Exoplanets, Sensors, Stars, Prisms, Spectroscopy, Space operations, Atmospheric sciences, Atmospheric chemistry

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Proceedings Article | 31 August 2022 Presentation + Paper

Presentation + Paper

Optimizing silicon UV detector response with antireflection coatings, solar-blind bandpass filters, and linear variable filters

April Jewell, Ghazaleh Kafaie Shirmanesh, John Hennessy, Shouleh Nikzad

Proceedings Volume 12181, 121810G (2022) https://doi.org/10.1117/12.2630552

KEYWORDS: Sensors, Antireflective coatings, Silicon, Quantum efficiency, Aluminum, Bandpass filters, Ultraviolet radiation, Ultraviolet detectors, Coating, Atomic layer deposition

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Proceedings Article | 31 August 2022 Poster + Paper

Poster + Paper

Star-Planet Activity Research CubeSat (SPARCS): instrument vacuum testing setup

Johnathan Gamaunt, Logan Jensen, Paul Scowen, David Ardila, Nathaniel Struebel, Tahina Ramiaramanantsoa, Daniel Jacobs, April Jewell, Shouleh Nikzad, Evgenya Shkolnik

Proceedings Volume 12181, 121813L (2022) https://doi.org/10.1117/12.2630555

KEYWORDS: Sensors, Interfaces, Space operations, Thermal modeling, Optical fabrication, Telescopes, Data modeling, Contamination, Ultraviolet radiation, Field programmable gate arrays

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Proceedings Article | 29 August 2022 Presentation + Paper

Presentation + Paper

2D-doped silicon detectors for UV/optical/NIR and x-ray astronomy

Michael Hoenk, April Jewell, Gillian Kyne, John Hennessy, Todd Jones, Samuel Cheng, Shouleh Nikzad, David Morris, Katherine Lawrie, Jesper Skottfelt

Proceedings Volume 12191, 1219113 (2022) https://doi.org/10.1117/12.2631542

KEYWORDS: Sensors, Charge-coupled devices, Quantum efficiency, Silicon, Interfaces, Ultraviolet radiation, Semiconducting wafers, CMOS sensors, Back illuminated sensors, Data modeling

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Proceedings Article | 29 August 2022 Presentation + Paper

Presentation + Paper

High dynamic range techniques for astronomical applications of CMOS devices

Hannah Earnshaw, Timothee Greffe, Roger Smith, Brian Grefenstette, Fiona Harrison, John Hennessy, Shouleh Nikzad, Charles Shapiro

Proceedings Volume 12191, 121910G (2022) https://doi.org/10.1117/12.2630367

KEYWORDS: Signal to noise ratio, High dynamic range imaging, Sensors, CMOS sensors, Point spread functions, Astronomy, High dynamic range image sensors, CMOS devices, Detection and tracking algorithms, Signal detection

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Proceedings Article | 29 August 2022 Presentation + Paper

Presentation + Paper

Characterization of low light performance of a CMOS sensor for ultraviolet astronomical applications

Timothee Greffe, Roger Smith, Myles Sherman, Fiona Harrison, Hannah Earnshaw, Brian Grefenstette, John Hennessy, Shouleh Nikzad

Proceedings Volume 12191, 121910E (2022) https://doi.org/10.1117/12.2629198

KEYWORDS: Sensors, Cadmium sulfide, Photons, CMOS sensors, Ultraviolet radiation, Video, Charge-coupled devices, Monte Carlo methods, Interference (communication), Astronomy

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Proceedings Article | 29 August 2022 Open Access

Open Access

Presentation

Emerging Technologies Panel

Shouleh Nikzad, Mario Perez, Nan Yu, Eric Fossum, Nemanja Jovanovic

Proceedings Volume 12188, 1218802 (2022) https://doi.org/10.1117/12.2646880

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Proceedings Article | 29 August 2022 Presentation

Presentation

FIREBall-2(022): challenges, progress, and the road ahead to flight

Keri Hoadley, Chris Martin, Erika Hamden, David Schiminovich, Shouleh Nikzad, Jean Evrard, Bruno Milliard, David Valls-Gabaud, Aafaque Khan, Simran Agarwal, Haeun Chung, Jessica Li, Trenton Brendel, Carlos Vargas, Nicole Melso, Zeren Lin, Marty Crabill, Drew Miles, Gillian Kyne, Vincent Picouet, Ignacio Cevallos, Barbara Santiago, Philippe Balard, Patrick Blanchard, Didier Vibert, Nicolas Bray, Catherine Hourtolle, Frédéri Mirc, Johan Montel, Jared Termini

Proceedings Volume 12181, 1218109 (2022) https://doi.org/10.1117/12.2629052

KEYWORDS: Roads, Galactic astronomy, Ultraviolet radiation, Space operations, Electron multiplying charge coupled devices, Ultraviolet telescopes, Ultraviolet detectors, Spectrographs, Space telescopes, Observatories

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Proceedings Article | 29 August 2022 Poster

Poster

Environmental studies on ALD metal fluorides for future far UV optical coatings

Robin Rodríguez, John Hennessy, April Jewell, Shouleh Nikzad, Parker Hinton, Nicholas Kruczek, Brian Fleming, Kevin France

Proceedings Volume 12181, 121813D (2022) https://doi.org/10.1117/12.2631413

KEYWORDS: Atomic layer deposition, Optical coatings, Metals, Ultraviolet radiation, Mirrors, Magnesium fluoride, Thin film coatings, Reflectivity, Laser induced fluorescence, Thin films

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SPIE Journal Paper | 22 April 2022

Characterization of low light performance of a complementary metal-oxide semiconductor sensor for ultraviolet astronomical applications

Timothee Greffe, Roger Smith, Myles Sherman, Fiona Harrison, Hannah Earnshaw, Brian Grefenstette, John Hennessy, Shouleh Nikzad

JATIS, Vol. 8, Issue 02, 026004, (April 2022) https://doi.org/10.1117/12.10.1117/1.JATIS.8.2.026004

KEYWORDS: Sensors, Semiconductors, Cadmium sulfide, Ultraviolet radiation, Charge-coupled devices, CMOS sensors, Photons, Video, Astronomy, Switches

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Complementary metal-oxide semiconductor (CMOS) detectors offer many advantages over charge-coupled devices (CCDs) for optical and ultraviolet (UV) astronomical applications, especially in space where high radiation tolerance is required. However, astronomical instruments are most often designed for low light-level observations demanding low dark current and read noise, good linearity, and high dynamic range, characteristics that have not been widely demonstrated for CMOS imagers. We report the performance, over temperatures from 140 to 240 K, of a radiation hardened SRI 4k × 2k back-side illuminated CMOS image sensor with surface treatments that make it highly sensitive in blue and UV bands. After suppressing emission from glow sites resulting from defects in the engineering grade device examined, a 0.077 me − / s dark current floor is reached at 160 K, rising to 1 me − / s at 184 K, rivaling that of the best CCDs. We examine the trade-off between readout speed and read noise, finding that 1.43 e − median read noise is achieved using line-wise digital correlated double sampling at 700 kpix / s / ch corresponding to a 1.5 s readout time. The 15 ke − well capacity in high gain mode extends to 120 ke − in dual gain mode. Continued collection of photogenerated charge during readout enables a further dynamic range extension beyond 106 e − effective well capacity with only 1% loss of exposure efficiency by combining short and long exposures. A quadratic fit to correct for non-linearity reduces gain correction residuals from 1.5% to 0.2% in low gain mode and to 0.4% in high gain mode. Cross-talk to adjacent pixels is only 0.4% vertically, 0.6% horizontally, and 0.1% diagonally. These characteristics plus the relatively large (10 μm) pixel size, quasi 4-side buttability, electronic shutter, and sub-array readout make this sensor an excellent choice for wide field astronomical imaging in space, even at far-UV wavelengths where sky background is very low.

Proceedings Article | 24 August 2021 Open Access

Open Access

Poster + Paper

Advances in detector-integrated filter coatings for the far ultraviolet

John Hennessy, April Jewell, Michael Hoenk, Shouleh Nikzad

Proceedings Volume 11821, 118211A (2021) https://doi.org/10.1117/12.2595524

KEYWORDS: Atomic layer deposition, Sensors, Silicon, Quantum efficiency, Reflectivity, Optical coatings, Aluminum, Dielectric filters, Optical filters, Antireflective coatings

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Proceedings Article | 2 August 2021 Open Access

Open Access

Presentation

Enabling technologies for astrophysics, planetary science, and terrestrial applications

Shouleh Nikzad

Proceedings Volume 11821, 1182102 (2021) https://doi.org/10.1117/12.2603698

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Proceedings Article | 16 December 2020 Presentation + Paper

Presentation + Paper

SPARCS payload assembly, integration, and test update

Paul Scowen, David Ardila, Logan Jensen, Johnathan Gamaunt, Shouleh Nikzad, April Jewell, Jim Austin, Matthew Beasley, Evgenya Shkolnik, Travis Barman, Judd Bowman, Varoujan Gorjian, Dawn Gregory, Daniel Jacobs, Joe Llama, Mary Knapp, Victoria Meadows, Sarah Peacock, Tahina Ramiaramanantsoa, Mark Swain, Peter Vedder, Lisa Whelan, Robert Zellem

Proceedings Volume 11444, 114440A (2020) https://doi.org/10.1117/12.2562582

KEYWORDS: Stars, Near ultraviolet, Custom fabrication, Optical fabrication, Integrated optics, Calibration, Light sources, Contamination control, Telescopes, Staring arrays

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Proceedings Article | 13 December 2020 Presentation

Presentation

FIREBAll-2 thermal control system: Performance of the 2018 flight and improvements for 2021

Zeren Lin, Gillian Kyne, Bruno Milliard, Hung Pham, Keri Hoadley, Chris Martin, David Schiminovich, Erika Hamden, Shouleh Nikzad, Vincent Picouet

Proceedings Volume 11445, 1144529 (2020) https://doi.org/10.1117/12.2561974

KEYWORDS: Control systems, Cryocoolers, Sensors, Thermal modeling, Performance modeling, Ultraviolet radiation, Astronomical imaging, Spectrographs, Galactic astronomy, Electron multiplying charge coupled devices

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Proceedings Article | 13 December 2020 Presentation

Presentation

SPARCam: the UV camera for the Star-Planet Activity Research CubeSat (SPARCS)

April Jewell, Christophe Basset, Samuel Cheng, John Hennessy, Gillian Kyne, David Ardila, Todd Jones, Evgenya Shkolnik, Shouleh Nikzad

Proceedings Volume 11444, 114440B (2020) https://doi.org/10.1117/12.2561091

KEYWORDS: Ultraviolet radiation, Cameras, Sensors, Electronics, Stars, Near ultraviolet, James Webb Space Telescope, Ultraviolet detectors, Charge-coupled devices, Antireflective coatings

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Proceedings Article | 13 December 2020 Presentation

Presentation

Delta-doped EMCCDs for sub-orbital and space based missions

Gillian Kyne, Shouleh Nikzad, April Jewell, Samuel Cheng, Todd Jones, John Hennessy, Michael Hoenk

Proceedings Volume 11454, 114541I (2020) https://doi.org/10.1117/12.2561975

KEYWORDS: Electron multiplying charge coupled devices, Space operations, Sensors, Charge-coupled devices, Ultraviolet radiation, Astronomical imaging, Spectrographs, Ultraviolet detectors, Environmental sensing, Aerospace engineering

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SPIE Journal Paper | 13 November 2020

End-to-end ground calibration and in-flight performance of the FIREBall-2 instrument

Vincent Picouet, Bruno Milliard, Gillian Kyne, Didier Vibert, David Schiminovich, Christopher Martin, Erika Hamden, Keri Hoadley, Johan Montel, Nicole Melso, Donal O'Sullivan, Jean Evrard, Etienne Pérot, Robert Grange, Shouleh Nikzad, Philippe Balard, Patrick Blanchard, Frédéri Mirc, Nicolas Bray, April Jewell, Samuel Quiret

JATIS, Vol. 6, Issue 04, 044004, (November 2020) https://doi.org/10.1117/12.10.1117/1.JATIS.6.4.044004

KEYWORDS: Calibration, Sensors, Spectrographs, Ultraviolet radiation, Chromium, Galactic astronomy, Signal to noise ratio, Electron multiplying charge coupled devices, Stars, Spatial resolution

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SPIE Journal Paper | 12 March 2020 Open Access

Open Access

Special Section Guest Editorial: Detectors for Astronomy and Cosmology

Shouleh Nikzad, Erika Hamden, Michael Hoenk, John MacKenty, Andrei Nomerotski, Charles Shapiro, Roger Smith

JATIS, Vol. 6, Issue 01, 011001, (March 2020) https://doi.org/10.1117/12.10.1117/1.JATIS.6.1.011001

KEYWORDS: Sensors, Astronomy, Charge-coupled devices, Image sensors, Large Synoptic Survey Telescope, Quantum efficiency, Ultraviolet radiation, Exoplanets, Calibration, CCD image sensors

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SPIE Journal Paper | 12 March 2020

Delta-doped electron-multiplying CCDs for FIREBall-2

Gillian Kyne, Erika Hamden, Shouleh Nikzad, Keri Hoadley, April Jewell, Todd Jones, Michael Hoenk, Samuel Cheng, D. Christopher Martin, Nicole Lingner, David Schiminovich, Bruno Milliard, Robert Grange, Olivier Daigle

JATIS, Vol. 6, Issue 01, 011007, (March 2020) https://doi.org/10.1117/12.10.1117/1.JATIS.6.1.011007

KEYWORDS: Electron multiplying charge coupled devices, Sensors, Charge-coupled devices, Clocks, Chromium, Spectrographs, Ultraviolet radiation, Calibration, Quantum efficiency, Temperature metrology

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Proceedings Article | 16 September 2019 Presentation + Paper

Presentation + Paper

Technology maturity update for the Habitable-zone Exoplanet Imaging Observatory (HabEx) concept

Rhonda Morgan, Keith Warfield, H. Phil Stahl, Bertrand Mennesson, Gary Kuan, Bala Balasubramanian, Dimitri Mawet, Shouleh Nikzad, John Hennessy, Ali Azizi, Stuart Shaklan, Eugene Serabyn

Proceedings Volume 11115, 111150N (2019) https://doi.org/10.1117/12.2529766

KEYWORDS: Exoplanets, Observatories, Telescopes, Coronagraphy, Mirrors, Optical instrument design, Deformable mirrors, Wavefronts, Segmented mirrors, Sensors

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Proceedings Article | 9 September 2019 Presentation

Presentation

Ground- and space-based UV observations with EMCCDs (Conference Presentation)

Gillian Kyne, Erika Hamden, Keri Hoadley, Christopher Martin, Shouleh Nikzad, April Jewell

Proceedings Volume 11115, 111150B (2019) https://doi.org/10.1117/12.2530520

KEYWORDS: Electron multiplying charge coupled devices, Ultraviolet radiation, Charge-coupled devices, Detector development, Astronomical imaging, Spectrographs, New and emerging technologies, Galactic astronomy, Photons

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Proceedings Article | 9 September 2019 Presentation

Presentation

2018 flight of the faint intergalactic medium redshifted emission balloon (FIREBall-2) (Conference Presentation)

Erika Hamden, Keri Hoadley, Chris Martin, David Schiminovich, Shouleh Nikzad, Bruno Milliard, Gillian Kyne

Proceedings Volume 11118, 1111814 (2019) https://doi.org/10.1117/12.2530083

KEYWORDS: Telescopes, Ultraviolet radiation, Electron multiplying charge coupled devices, Astronomical imaging, Spectrographs, Mirrors, Hardware testing

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Proceedings Article | 13 May 2019 Paper

Paper

FIREBall-2: advancing TRL while doing proof-of-concept astrophysics on a suborbital platform

Erika Hamden, Keri Hoadley, D. Christopher Martin, David Schiminovich, Bruno Milliard, Shouleh Nikzad, Ramona Augustin, Philippe Balard, Patrick Blanchard, Nicolas Bray, Marty Crabill, Jean Evrard, Albert Gomes, Robert Grange, Julia Gross, April Jewell, Gillian Kyne, Michele Limon, Nicole Lingner, Mateusz Matuszewski, Nicole Melso, Frédéri Mirc, Johan Montel, Hwei Ru Ong, Donal O'Sullivan, Sandrine Pascal, Etienne Perot, Vincent Picouet, Muriel Saccoccio, Brian Smiley, Xavier Soors, Pierre Tapie, Didier Vibert, Isabelle Zenone, Jose Zorrilla

Proceedings Volume 10982, 1098220 (2019) https://doi.org/10.1117/12.2518711

KEYWORDS: Ultraviolet radiation, Sensors, Charge-coupled devices, Astrophysics, Electron multiplying charge coupled devices, Quantum efficiency, Mirrors, Spectrographs, Microchannel plates, Ultraviolet detectors

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Proceedings Article | 6 July 2018 Paper

Paper

Ultraviolet detectors for astrophysics missions: a case study with the star-planet activity research cubesat (SPARC)

April Jewell, John Hennessy, Todd Jones, Samuel Cheng, Alexander Carver, David Ardila, Evgenya Shkolnik, Michael Hoenk, Shouleh Nikzad

Proceedings Volume 10709, 107090C (2018) https://doi.org/10.1117/12.2312972

KEYWORDS: Sensors, Ultraviolet radiation, Antireflective coatings, Quantum efficiency, Silicon, Ultraviolet detectors, Charge-coupled devices, Bandpass filters, Exoplanets, Ultraviolet coatings

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Proceedings Article | 6 July 2018 Paper

Paper

Ultrathin protective coatings by atomic layer engineering for far ultraviolet aluminum mirrors

John Hennessy, April Jewell, Christopher Moore, Alexander Carver, Kunjithapatham Balasubramanian, Kevin France, Shouleh Nikzad

Proceedings Volume 10699, 1069902 (2018) https://doi.org/10.1117/12.2314185

KEYWORDS: Magnesium fluoride, Aluminum, Mirrors, Reflectivity, Atomic layer deposition, Optical coatings, Etching, Ultraviolet radiation, Thin film coatings, Oxides

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Proceedings Article | 6 July 2018 Presentation + Paper

Presentation + Paper

Monitoring the high-energy radiation environment of exoplanets around low-mass stars with SPARCS (Star-Planet Activity Research CubeSat)

Paul Scowen, Evgenya Shkolnik, David Ardila, Travis Berman, Matthew Beasley, Judd Bowman, Michael Fitzgerald, Varoujan Gorjian, Daniel Jacobs, April Jewell, Joe Llama, Victoria Meadows, Shouleh Nikzad, Constance Spittler, Mark Swain, Robert Zellem

Proceedings Volume 10699, 106990F (2018) https://doi.org/10.1117/12.2315543

KEYWORDS: Ultraviolet radiation, Stars, Atmospheric modeling, Space operations, Space telescopes, Planets, Telescopes, Sensors, Exoplanets, Control systems

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Proceedings Article | 6 July 2018 Presentation + Paper

Presentation + Paper

Conceptual design of a wide-field near UV transient survey in a 6U CubeSat

Yoichi Yatsu, Toshiki Ozawa, Kenichi Sasaki, Hideo Mamiya, Nobuyuki Kawai, Yuhei Kikuya, Masanori Matsushita, Saburo Matunaga, Shouleh Nikzad, Pavaman Bilgi, Shrinivas Kulkarni, Nozomu Tominaga, Masaomi Tanaka, Tomoki Morokuma, Norihide Takeyama, Akito Enokuchi

Proceedings Volume 10699, 106990D (2018) https://doi.org/10.1117/12.2313026

KEYWORDS: Satellites, Ultraviolet radiation, Sensors, Telescopes, Space telescopes, Stars, Satellite communications, Near ultraviolet, Astronomy, Optical design

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Proceedings Article | 6 July 2018 Paper

Paper

Technology maturity for the habitable-zone exoplanet imaging observatory (HabEx) concept

Rhonda Morgan, Keith Warfield, Gary Kuan, H. Phil Stahl, Bertrand Mennesson, Bala Balasubramanian, Dimitri Mawet, Shouleh Nikzad, Joel Nissen, Stuart Shaklan, Eugene Serabyn, Karl Stapelfeldt, Steven Warwick

Proceedings Volume 10698, 106980S (2018) https://doi.org/10.1117/12.2313845

KEYWORDS: Mirrors, Coronagraphy, Coating, Sensors, Reflectivity, Telescopes, Space telescopes, Ultraviolet radiation, Electron multiplying charge coupled devices, Microchannel plates

Read Abstract +

Proceedings Article | 14 May 2018 Paper

Paper

Advanced imaging capabilities by incorporating plasmonics and metamaterials in detectors

John Hennessy, April Jewell, Michael Hoenk, David Hitlin, Mickel McClish, Alexander Carver, Todd Jones, Ahmed Morsy, Michelle Povinelli, L. Douglas Bell, Shouleh Nikzad

Proceedings Volume 10639, 106391P (2018) https://doi.org/10.1117/12.2305126

KEYWORDS: Silicon, Aluminum, Sensors, Optical filters, Atomic layer deposition, Ultraviolet radiation, Plasmonics, Quantum efficiency, Metamaterials, Metals

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Proceedings Article | 21 September 2017 Paper

Paper

Atomic layer deposition and etching methods for far ultraviolet aluminum mirrors

John Hennessy, Christopher Moore, Kunjithapatham Balasubramanian, April Jewell, Christian Carter, Kevin France, Shouleh Nikzad

Proceedings Volume 10401, 1040119 (2017) https://doi.org/10.1117/12.2274633

KEYWORDS: Aluminum, Atomic layer deposition, Mirrors, Reflectivity, Focus stacking software, Etching, Laser induced fluorescence, Ultraviolet radiation, Oxides, Far ultraviolet

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Proceedings Article | 5 September 2017 Paper

Paper

Mirror coatings for large aperture UV optical infrared telescope optics

Kunjithapatham Balasubramanian, John Hennessy, Nasrat Raouf, Shouleh Nikzad, Javier Del Hoyo, Manuel Quijada

Proceedings Volume 10398, 103980X (2017) https://doi.org/10.1117/12.2274794

KEYWORDS: Space telescopes, Mirrors, Optical coatings, Near infrared, Ultraviolet radiation, Infrared telescopes, Aluminum, Reflectivity, Telescopes, Atomic layer deposition

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SPIE Journal Paper | 1 September 2017

High-efficiency UV/optical/NIR detectors for large aperture telescopes and UV explorer missions: development of and field observations with delta-doped arrays

Shouleh Nikzad, April Jewell, Michael Hoenk, Todd Jones, John Hennessy, Tim Goodsall, Alexander Carver, Charles Shapiro, Samuel Cheng, Erika Hamden, Gillian Kyne, D. Christopher Martin, David Schiminovich, Paul Scowen, Kevin France, Stephan McCandliss, Roxana Lupu

JATIS, Vol. 3, Issue 03, 036002, (September 2017) https://doi.org/10.1117/12.10.1117/1.JATIS.3.3.036002

KEYWORDS: Sensors, Silicon, Charge-coupled devices, Ultraviolet radiation, Quantum efficiency, Telescopes, Space telescopes, Semiconducting wafers, Ultraviolet telescopes, Astronomical telescopes

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Proceedings Article | 12 June 2017 Presentation

Presentation

Fluorescence and reflectance measurements in the ultraviolet, visible, and near infrared using delta-doped silicon arrays with custom coating for medical applications (Conference Presentation)

Samuel Cheng, Dana Budzyn, Shouleh Nikzad

Proceedings Volume 10194, 101942C (2017) https://doi.org/10.1117/12.2263841

KEYWORDS: Sensors, Luminescence, Ultraviolet radiation, Near infrared, Visible radiation, Imaging spectroscopy, Signal detection, Tissues, Coating, Reflectivity

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Proceedings Article | 28 April 2017 Paper

Paper

Materials and process development for the fabrication of far ultraviolet device-integrated filters for visible-blind Si sensors

John Hennessy, April Jewell, Michael Hoenk, David Hitlin, Mickel McClish, Alexander Carver, Todd Jones, Shouleh Nikzad

Proceedings Volume 10209, 102090P (2017) https://doi.org/10.1117/12.2262786

KEYWORDS: Silicon, Sensors, Metals, Dielectric filters, Ultraviolet radiation, Quantum efficiency, Visible radiation, Far ultraviolet, Atomic layer deposition, Internal quantum efficiency, Aluminum, Reflectivity, Dielectrics, Avalanche photodetectors, Magnesium fluoride, CCD image sensors, Avalanche photodiodes, Bandpass filters

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SPIE Journal Paper | 3 April 2017 Open Access

Open Access

Special Section Guest Editorial: Brain Mapping and Therapeutics

Shouleh Nikzad, Yu Chen, Vassiliy Tsytsarev, Babak Kateb, Warren Grundfest

NPh, Vol. 4, Issue 01, 011001, (April 2017) https://doi.org/10.1117/12.10.1117/1.NPh.4.1.011001

KEYWORDS: Brain, Brain mapping, Neurophotonics, Neuroimaging, Tissue optics, Medicine, Sensors, Neuroscience, Optical coherence tomography, Tumors

Proceedings Article | 17 October 2016 Paper

Paper

Characterizing environmental effects on visible and UV reflectance of ALD-coated optics

Christian Carter, Christopher Moore, John Hennessy, April Jewell, Shouleh Nikzad, Kevin France

Proceedings Volume 9963, 99630V (2016) https://doi.org/10.1117/12.2238198

KEYWORDS: Reflectivity, Atomic layer deposition, UV optics, Mirrors, Optical coatings, Wafer-level optics, Laser induced fluorescence, Aluminum, Silicon, Magnesium fluoride

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SPIE Journal Paper | 12 September 2016 Open Access

Open Access

Charge-coupled devices detectors with high quantum efficiency at UV wavelengths

Erika Hamden, April Jewell, Charles Shapiro, Samuel Cheng, Timothy Goodsall, John Hennessy, Michael Hoenk, Todd Jones, Samuel Gordon, Hwei Ru Ong, David Schiminovich, D. Christopher Martin, Shouleh Nikzad

JATIS, Vol. 2, Issue 03, 036003, (September 2016) https://doi.org/10.1117/12.10.1117/1.JATIS.2.3.036003

KEYWORDS: Quantum efficiency, Silicon, Charge-coupled devices, Ultraviolet radiation, Absorption, Sensors, Reflectivity, Aluminum, Silica, Atomic layer deposition

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Proceedings Article | 1 August 2016 Paper

Paper

The faint intergalactic-medium red-shifted emission balloon: future UV observations with EMCCDs

Gillian Kyne, Erika Hamden, Nicole Lingner, Patrick Morrissey, Shouleh Nikzad, D. Christopher Martin

Proceedings Volume 9915, 991507 (2016) https://doi.org/10.1117/12.2232879

KEYWORDS: Electron multiplying charge coupled devices, Clocks, Charge-coupled devices, Sensors, Image storage, Ultraviolet radiation, Telescopes, Spectrographs, Temperature metrology, Galactic astronomy

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Proceedings Article | 22 July 2016 Paper

Paper

Atomic Layer Deposited (ALD) coatings for future astronomical telescopes: recent developments

Christopher Samuel Moore, John Hennessy, April Jewell, Shouleh Nikzad, Kevin France

Proceedings Volume 9912, 99122U (2016) https://doi.org/10.1117/12.2232296

KEYWORDS: Atomic layer deposition, Reflectivity, Aluminum, Mirrors, Metals, Astronomy, Ultraviolet radiation, Magnesium fluoride, Oxides, Laser induced fluorescence

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Proceedings Article | 18 July 2016 Paper

Paper

Concept study for a compact homodyne astrophysics spectrometer for exoplanets (CHASE)

Sona Hosseini, Chris Webster, Debra Fischer, Evgenya Shkolnik, Shouleh Nikzad, Gautam Vasisht, Wesley Traub

Proceedings Volume 9905, 990534 (2016) https://doi.org/10.1117/12.2233242

KEYWORDS: Ultraviolet radiation, Exoplanets, Device simulation, Spectrographs, Electronics, Charge-coupled devices, Software development, Instrument modeling, Computer simulations, Data processing

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SPIE Journal Paper | 7 June 2016

Performance and prospects of far ultraviolet aluminum mirrors protected by atomic layer deposition

John Hennessy, Kunjithapatham Balasubramanian, Christopher Moore, April Jewell, Shouleh Nikzad, Kevin France, Manuel Quijada

JATIS, Vol. 2, Issue 04, 041206, (June 2016) https://doi.org/10.1117/12.10.1117/1.JATIS.2.4.041206

KEYWORDS: Aluminum, Atomic layer deposition, Reflectivity, Mirrors, Oxides, Optical coatings, Far ultraviolet, Thin films, Laser induced fluorescence, Ultraviolet radiation

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Proceedings Article | 22 September 2015 Paper

Paper

Coatings for UVOIR telescope mirrors

Kunjithapatham Balasubramanian, John Hennessy, Nasrat Raouf, Shouleh Nikzad, Michael Ayala, Stuart Shaklan, Paul Scowen, Javier Del Hoyo, Manuel Quijada

Proceedings Volume 9602, 96020I (2015) https://doi.org/10.1117/12.2188981

KEYWORDS: Aluminum, Reflectivity, Atomic layer deposition, Mirrors, Diagnostics, Magnesium fluoride, Oxides, Ultraviolet radiation, Laser induced fluorescence, Space telescopes

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Proceedings Article | 24 August 2015 Paper

Paper

Current progress in the characterization of atomic layer deposited AlF3 for future astronomical ultraviolet mirror coatings

Christopher Samuel Moore, John Hennessy, Eliot Kersgaard, April Jewell, Shouleh Nikzad, Kevin France

Proceedings Volume 9601, 96010X (2015) https://doi.org/10.1117/12.2186723

KEYWORDS: Silicon, Reflectivity, Atomic layer deposition, Ultraviolet radiation, Polarization, Optical coatings, Mirrors, Aluminum, Surface roughness, Semiconducting wafers

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Proceedings Article | 24 August 2015 Paper

Paper

Detector performance for the FIREBall-2 UV experiment

April Jewell, Erika Hamden, Hwei Ru Ong, John Hennessy, Timothy Goodsall, Charles Shapiro, Samuel Cheng, Todd Jones, Alexander Carver, Michael Hoenk, David Schiminovich, Christopher Martin, Shouleh Nikzad

Proceedings Volume 9601, 96010N (2015) https://doi.org/10.1117/12.2190167

KEYWORDS: Sensors, Atomic layer deposition, Ultraviolet radiation, Quantum efficiency, Semiconducting wafers, Electron multiplying charge coupled devices, Silicon, Reflectivity, Silica, Sensor performance

Read Abstract +

Proceedings Article | 30 July 2014 Paper

Paper

Superlattice-doped silicon detectors: progress and prospects

Michael Hoenk, Shouleh Nikzad, Alexander Carver, Todd Jones, John Hennessy, April Jewell, Joseph Sgro, Shraga Tsur, Mickel McClish, Richard Farrell

Proceedings Volume 9154, 915413 (2014) https://doi.org/10.1117/12.2057678

KEYWORDS: Sensors, Doping, Silicon, Interfaces, Superlattices, Quantum efficiency, Deep ultraviolet, Oxides, Atomic layer deposition, Charge-coupled devices

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Proceedings Article | 24 July 2014 Paper

Paper

High efficiency CCD detectors at UV wavelengths

Erika Hamden, April Jewell, Samuel Gordon, John Hennessy, Michael Hoenk, Shouleh Nikzad, David Schiminovich, D. Christopher Martin

Proceedings Volume 9144, 91442X (2014) https://doi.org/10.1117/12.2056204

KEYWORDS: Coating, Silica, Ultraviolet radiation, Spectrographs, Sensors, Charge-coupled devices, Quantum efficiency, Absorption, Silicon, Galactic astronomy

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Proceedings Article | 24 July 2014 Paper

Paper

Recent developments and results of new ultraviolet reflective mirror coatings

Christopher Moore, John Hennessy, April Jewell, Shouleh Nikzad, Kevin France

Proceedings Volume 9144, 91444H (2014) https://doi.org/10.1117/12.2057272

KEYWORDS: Reflectivity, Aluminum, Silicon, Atomic layer deposition, Magnesium fluoride, Ultraviolet radiation, Optical coatings, Thin film coatings, Metals, Mirrors

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Proceedings Article | 25 September 2013 Paper

Paper

Wide band antireflection coatings deposited by atomic layer deposition

April Jewell, John Hennessy, Michael Hoenk, Shouleh Nikzad

Proceedings Volume 8820, 88200Z (2013) https://doi.org/10.1117/12.2025198

KEYWORDS: Atomic layer deposition, Silicon, Antireflective coatings, Optical coatings, Transmission electron microscopy, Sensors, Oxides, Silica, Interfaces, Titanium dioxide

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Proceedings Article | 25 September 2012 Paper

Paper

UV photon-counting CCD detectors that enable the next generation of UV spectroscopy missions: AR coatings that can achieve 80-90% QE

Erika Hamden, Frank Greer, David Schiminovich, Shouleh Nikzad, D. Christopher Martin

Proceedings Volume 8453, 845309 (2012) https://doi.org/10.1117/12.927208

KEYWORDS: Quantum efficiency, Silica, Ultraviolet radiation, Silicon, Charge-coupled devices, Absorption, Sensors, Antireflective coatings, Magnesium fluoride, Atomic layer deposition

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Proceedings Article | 24 September 2012 Paper

Paper

Modified modular imaging system designed for a sounding rocket experiment

Todd Veach, Paul Scowen, Matthew Beasley, Shouleh Nikzad

Proceedings Volume 8446, 84467F (2012) https://doi.org/10.1117/12.925592

KEYWORDS: Rockets, Charge-coupled devices, Imaging systems, Sensors, Control systems, Video, Amplifiers, Copper, Ultraviolet radiation, Clocks

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Proceedings Article | 21 September 2012 Paper

Paper

Mirror coatings with atomic layer deposition: initial results

Frank Greer, Shouleh Nikzad, Wesley Traub

Proceedings Volume 8442, 84421J (2012) https://doi.org/10.1117/12.926625

KEYWORDS: Atomic layer deposition, Mirrors, Reflectivity, Magnesium fluoride, Aluminum, Ultraviolet radiation, Phase shifts, Laser induced fluorescence, Space telescopes, Telescopes

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Proceedings Article | 17 September 2012 Paper

Paper

Progress in new ultraviolet reflective coating techniques

Matthew Beasley, Frank Greer, Shouleh Nikzad

Proceedings Volume 8443, 84433Q (2012) https://doi.org/10.1117/12.926529

KEYWORDS: Atomic layer deposition, Coating, Aluminum, Magnesium fluoride, Reflectivity, Mirrors, Ultraviolet radiation, Spectrographs, Thin films, Metals

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Proceedings Article | 16 September 2011 Paper

Paper

Progress in new ultraviolet reflective coating techniques

Matthew Beasley, Frank Greer, Shouleh Nikzad

Proceedings Volume 8145, 81450F (2011) https://doi.org/10.1117/12.893903

KEYWORDS: Coating, Atomic layer deposition, Reflectivity, Aluminum, Magnesium fluoride, Ultraviolet radiation, Spectrographs, Laser induced fluorescence, Mirrors, Sensors

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Proceedings Article | 11 August 2010 Paper

Paper

Design and implementation of the NUV/optical widefield Star Formation Camera for the Theia Observatory

Paul Scowen, Rolf Jansen, Matthew Beasley, Daniella Calzetti, Steve Desch, Alex Fullerton, John Gallagher, P. Douglas Lisman, Steven Macenka, Sangeeta Malhotra, Mark McCaughrean, Shouleh Nikzad, Robert O'Connell, Sally Oey, Deborah Padgett, James Rhoads, Aki Roberge, Oswald H. W. Siegmund, Stuart Shaklan, Nathan Smith, Daniel Stern, Jason Tumlinson, Rogier Windhorst, Robert Woodruff

Proceedings Volume 7731, 77314Y (2010) https://doi.org/10.1117/12.857475

KEYWORDS: Sensors, Galactic astronomy, Stars, Cameras, Staring arrays, Imaging systems, Space telescopes, Silicon, Optical filters, Astronomy

Read Abstract +

Proceedings Article | 17 July 2010 Paper

Paper

Fully digital image sensor employing delta-sigma indirect feedback ADC with high-sensitivity to low-light illuminations for astronomical imaging applications

Danijel Maricic, Zeljko Ignjatovic, Donald Figer, Brian Ashe, Brandon Hanold, Thomas Montagliano, Don Stauffer, Shouleh Nikzad

Proceedings Volume 7742, 774217 (2010) https://doi.org/10.1117/12.857391

KEYWORDS: Image sensors, Photodiodes, Transistors, Cadmium sulfide, CMOS sensors, Prototyping, Signal to noise ratio, Astronomical imaging, Sensors, Imaging systems

Read Abstract +

Proceedings Article | 16 July 2010 Paper

Paper

Characterization of a Σ∆-based CMOS monolithic detector

Brandon Hanold, Donald Figer, Brian Ashe, Thomas Montagliano, Donald Stauffer, Zeljko Ignjatovic, Danijel Maricic, Shouleh Nikzad, Todd Jones

Proceedings Volume 7742, 77420A (2010) https://doi.org/10.1117/12.857176

KEYWORDS: Sensors, Photodiodes, Capacitance, Quantum efficiency, Analog electronics, CMOS sensors, Electronics, Silicon, Modulation, Etching

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Proceedings Article | 13 July 2010 Paper

Paper

Characterization and absolute QE measurements of delta-doped N-channel and P-channel CCDs

Blake Jacquot, Steve Monacos, Todd Jones, Jordana Blacksberg, Michael Hoenk, Shouleh Nikzad

Proceedings Volume 7742, 77420I (2010) https://doi.org/10.1117/12.857694

KEYWORDS: Quantum efficiency, Charge-coupled devices, Vacuum ultraviolet, Sensors, Monochromators, Calibration, Silicon, Ultraviolet radiation, Photodiodes, Optical filters

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Proceedings Article | 15 September 2009 Paper

Paper

Delta-doped back-illuminated CMOS imaging arrays: progress and prospects

Michael Hoenk, Todd Jones, Matthew Dickie, Frank Greer, Thomas Cunningham, Edward Blazejewski, Shouleh Nikzad

Proceedings Volume 7419, 74190T (2009) https://doi.org/10.1117/12.832326

KEYWORDS: Charge-coupled devices, Silicon, Imaging arrays, Sensors, Quantum efficiency, Ultraviolet radiation, Back illuminated sensors, Semiconducting wafers, CMOS sensors, Image sensors

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Proceedings Article | 15 July 2008 Paper

Paper

Calibration and flight performance of the long-slit imaging dual order spectrograph

Roxana Lupu, Stephan McCandliss, Brian Fleming, Kevin France, Paul Feldman, Shouleh Nikzad

Proceedings Volume 7011, 70113I (2008) https://doi.org/10.1117/12.786435

KEYWORDS: Microchannel plates, Charge-coupled devices, Sensors, Calibration, Telescopes, Spectrographs, Stars, Lamps, CCD image sensors, Monochromatic aberrations

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Proceedings Article | 12 July 2008 Paper

Paper

The Observatory for Multi-Epoch Gravitational Lens Astrophysics (OMEGA)

Leonidas Moustakas, Adam Bolton, Jeffrey Booth, James Bullock, Edward Cheng, Dan Coe, Christopher Fassnacht, Varoujan Gorjian, Cate Heneghan, Charles Keeton, Christopher Kochanek, Charles Lawrence, Philip Marshall, R. Benton Metcalf, Priyamvada Natarajan, Shouleh Nikzad, Bradley Peterson, Joachim Wambsganss

Proceedings Volume 7010, 70101B (2008) https://doi.org/10.1117/12.789987

KEYWORDS: Galactic astronomy, Sensors, Imaging spectroscopy, Mirrors, Spectroscopy, Observatories, Astrophysics, Photometry, Space telescopes, Hubble Space Telescope

Read Abstract +

Dark matter in a universe dominated by a cosmological constant seeds the formation of structure and is the scaffolding for galaxy formation. The nature of dark matter remains one of the fundamental unsolved problems in astrophysics and physics even though it represents 85% of the mass in the universe, and nearly one quarter of its total mass-energy budget. The mass function of dark matter "substructure" on sub-galactic scales may be enormously sensitive to the mass and properties of the dark matter particle. On astrophysical scales, especially at cosmological distances, dark matter substructure may only be detected through its gravitational influence on light from distant varying sources. Specifically, these are largely active galactic nuclei (AGN), which are accreting super-massive black holes in the centers of galaxies, some of the most extreme objects ever found. With enough measurements of the flux from AGN at different wavelengths, and their variability over time, the detailed structure around AGN, and even the mass of the super-massive black hole can be measured. The Observatory for Multi-Epoch Gravitational Lens Astrophysics (OMEGA) is a mission concept for a 1.5-m near-UV through near-IR space observatory that will be dedicated to frequent imaging and spectroscopic monitoring of ~100 multiply-imaged active galactic nuclei over the whole sky. Using wavelength-tailored dichroics with extremely high transmittance, efficient imaging in six channels will be done simultaneously during each visit to each target. The separate spectroscopic mode, engaged through a flip-in mirror, uses an image slicer spectrograph. After a period of many visits to all targets, the resulting multidimensional movies can then be analyzed to a) measure the mass function of dark matter substructure; b) measure precise masses of the accreting black holes as well as the structure of their accretion disks and their environments over several decades of physical scale; and c) measure a combination of Hubble's local expansion constant and cosmological distances to unprecedented precision. We present the novel OMEGA instrumentation suite, and how its integrated design is ideal for opening the time domain of known cosmologically-distant variable sources, to achieve the stated scientific goals.

Proceedings Article | 12 July 2008 Paper

Paper

The Star Formation Observatory (SFO) mission to study cosmic origins near and far

Paul Scowen, Rolf Jansen, Matthew Beasley, Brian Cooke, Shouleh Nikzad, Oswald Siegmund, Robert Woodruff, Daniela Calzetti, Steven Desch, Alex Fullerton, John Gallagher, Sangeeta Malhotra, Mark McCaughrean, Robert O'Connell, Sally Oey, Debbie Padgett, James Rhoads, Aki Roberge, Nathan Smith, Daniel Stern, Jason Tumlinson, Rogier Windhorst

Proceedings Volume 7010, 70103Z (2008) https://doi.org/10.1117/12.788038

KEYWORDS: Stars, Galactic astronomy, Sensors, Spectroscopy, Imaging spectroscopy, Observatories, Quantum efficiency, Microchannel plates, Silicon, Planets

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Proceedings Article | 20 June 2006 Paper

Paper

A novel low-voltage electron-bombarded CCD readout

Patrick Morrissey, Steve Kaye, Chris Martin, Janet Sheung, Shouleh Nikzad, Todd Jones, Jordanna Blacksberg, Michael Hoenk, L. Douglass Bell

Proceedings Volume 6266, 626610 (2006) https://doi.org/10.1117/12.673208

KEYWORDS: Charge-coupled devices, Electrons, Gallium nitride, Sensors, Quantum efficiency, Ultraviolet radiation, Cameras, Back illuminated sensors, Silicon, Cesium

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Proceedings Article | 21 October 2005 Paper

Paper

Advanced broadband imager for EUV and FUV studies with exquisite precision

Hakeem Oluseyi, Shouleh Nikzad, Jordana Blacksberg, Michael Hoenk

Proceedings Volume 5978, 59781A (2005) https://doi.org/10.1117/12.646707

KEYWORDS: Charge-coupled devices, Extreme ultraviolet, Silicon, Quantum efficiency, Imaging systems, Antimony, Staring arrays, Sun, Packaging, Remote sensing

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Proceedings Article | 18 December 2000 Paper

Paper

Ultrastable and uniform EUV and UV detectors

Shouleh Nikzad, Todd Jones, S. Elliott, Thomas Cunningham, Peter Deelman, Arthur Walker, Hakeem Oluseyi

Proceedings Volume 4139, (2000) https://doi.org/10.1117/12.410541

KEYWORDS: Charge-coupled devices, Quantum efficiency, Silicon, Ultraviolet radiation, Sensors, Electrons, Photons, Extreme ultraviolet, CCD cameras, Doping

Read Abstract +

Proceedings Article | 15 May 2000 Paper

Paper

Delta-doped CCDs with integrated UV coatings

Peter Deelman, Shouleh Nikzad, Morley Blouke

Proceedings Volume 3965, (2000) https://doi.org/10.1117/12.385471

KEYWORDS: Charge-coupled devices, Silicon, Quantum efficiency, Ultraviolet radiation, Optical filters, Antireflective coatings, Magnesium fluoride, Ultraviolet coatings, Photons, Oxides

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Proceedings Article | 15 May 2000 Paper

Paper

Thinned charged-coupled devices with flat focal planes for UV imaging

Todd Jones, Peter Deelman, S. Elliott, Paula Grunthaner, R. Wilson, Shouleh Nikzad

Proceedings Volume 3965, (2000) https://doi.org/10.1117/12.385472

KEYWORDS: Charge-coupled devices, Silicon, Doping, Etching, Ultraviolet radiation, Gold, Back illuminated sensors, Diffusion, Platinum, Aerospace engineering

Read Abstract +

Proceedings Article | 25 April 1997 Paper

Paper

Low-energy electron detection with delta-doped CCDs

Shouleh Nikzad, Aimee Smith, Tom Elliott, Todd Jones, T. Tombrello, Qiuming Yu

Proceedings Volume 3019, (1997) https://doi.org/10.1117/12.275183

KEYWORDS: Charge-coupled devices, Silicon, Quantum efficiency, Backscatter, Ultraviolet radiation, Electron beams, Internal quantum efficiency, Scanning electron microscopy, Aluminum, Absorption

Read Abstract +

Proceedings Article | 22 July 1994 Paper

Paper

Delta-doped CCDs as stable, high-sensitivity, high-resolution UV imaging arrays

Shouleh Nikzad, Michael Hoenk, Paula Grunthaner, Robert Terhune, Frank Grunthaner, Rusty Winzenread, Masoud Fattahi, Hsin-Fu Tseng

Proceedings Volume 2217, (1994) https://doi.org/10.1117/12.179949

KEYWORDS: Charge-coupled devices, Quantum efficiency, Silicon, Ultraviolet radiation, Photons, Absorption, Oxides, Reflection, Transmittance, Internal quantum efficiency

Read Abstract +

Proceedings Article | 12 July 1994 Paper

Paper

Delta-doped CCDs for enhanced UV performance

Shouleh Nikzad, Michael Hoenk, Paula Grunthaner, Robert Terhune, Frank Grunthaner, Rusty Winzenread, Masoud Fattahi, Hsin-Fu Tseng

Proceedings Volume 2278, (1994) https://doi.org/10.1117/12.180023

KEYWORDS: Charge-coupled devices, Quantum efficiency, Silicon, Ultraviolet radiation, Boron, Chemical species, Interfaces, Aerospace engineering, Ion implantation, Internal quantum efficiency

Read Abstract +

Proceedings Article | 1 June 1994 Paper

Paper

Delta-doped CCDs: high QE with long-term stability at UV and visible wavelengths

Shouleh Nikzad, Michael Hoenk, Paula Grunthaner, Robert Terhune, Frank Grunthaner, Rusty Winzenread, Masoud Fattahi, Hsin-Fu Tseng, Michael Lesser

Proceedings Volume 2198, (1994) https://doi.org/10.1117/12.176733

KEYWORDS: Charge-coupled devices, Silicon, Quantum efficiency, Ultraviolet radiation, Visible radiation, Antireflective coatings, Internal quantum efficiency, Boron, Chemical species, Photons

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Showing 5 of 75 publications

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Space Telescopes and Instrumentation 2022: Ultraviolet to Gamma Ray

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Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray

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Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray

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Sensors and Systems for Space Applications XVI

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Space Telescopes and Instrumentation 2022: Ultraviolet to Gamma Ray

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Sensors and Systems for Space Applications XIV

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Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray

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Micro- and Nanotechnology Sensors, Systems, and Applications IX

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Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray

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