Mr. Christopher Smith Profile

Christopher Smith

at Sierra Lobo, Inc.

SPIE Involvement:

Author

Publications (13)

Proceedings Article | 30 October 2023 Presentation + Paper

Preliminary alignment, characterization, and comparison of next generation carbon mapping imaging spectrometers

Sander Zandbergen, Lucas Shaw, Clifford Klein, David Thompson, Robert Green, Riley Duren, Megan Gibson, Hovik Nazaryan, Christopher Smith, Blaze Cubanski, Paul Giuliano, Justin Haag, Caroline Pritchett

Proceedings Volume 12688, 126880C (2023) https://doi.org/10.1117/12.2678614

KEYWORDS: Hyperspectral imaging, Spectrometers, Equipment, Carbon, Telescopes, Planets, Space operations, Optical design, Optical alignment, Mirrors

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Proceedings Article | 20 October 2023 Presentation + Paper

Optomechanical design of a next generation carbon mapping hyperspectral imaging spectrometer

Lucas Shaw, Sander Zandbergen, Clifford Klein, Nathan Kinkaid, Riley Duren, Dustin Crumb, Megan Gibson, Eric Olds, Christopher Smith, Paul Giuliano, Justin Haag

Proceedings Volume 12688, 126880A (2023) https://doi.org/10.1117/12.2678750

KEYWORDS: Spectroscopy, Telescopes, Mirrors, Hyperspectral imaging, Equipment, Carbon, Optical gratings, Optical alignment, Titanium, Optomechanical design

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Proceedings Article | 20 October 2023 Poster + Paper

Ultra-compact imaging spectrometer for the lunar surface (UCIS-Moon): instrument alignment and laboratory optical performance

Holly Bender, Abigail Fraeman, Christopher Smith, Megan Gibson, Robert Green, David Thompson, Michael Eastwood, Quentin Vinckier, Mark Helmlinger, Byron Van Gorp, Ian Mckinley, Charles Sarture, Pantazis Mouroulis

Proceedings Volume 12688, 126880J (2023) https://doi.org/10.1117/12.2678070

KEYWORDS: Equipment, Spectroscopy, Spectral response, Telescopes, Optical alignment, Short wave infrared radiation, Infrared spectroscopy, Minerals

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Proceedings Article | 5 October 2023 Presentation + Paper

Thermal vacuum performance testing of the CubeSat Infrared Atmospheric Sounder (CIRAS)

Thomas Pagano, Hyung Cho, Timothy Crawford, Patricia Hansen, Dean Johnson, Yuki Maruyama, Brian Monacelli, Sir Rafol, Alex Soibel, Keeyoon Sung, Nicholas Tallarida, Mark Schwochert, Robert Wilson, Megan Gibson, Chris Smith, Thomas Kampe

Proceedings Volume 12689, 1268906 (2023) https://doi.org/10.1117/12.2682477

KEYWORDS: Equipment, Gas cells, Dark current, Fabry–Perot interferometers, Signal to noise ratio, Black bodies, Vacuum chambers, Thermography, Infrared radiation

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Proceedings Article | 30 September 2022 Presentation + Paper

Optical design and performance of the Lunar Trailblazer High-resolution Volatiles and Minerals Moon Mapper (HVM3)

Holly Bender, Christopher Smith, Bethany Ehlmann, David Thompson, Quentin Vinckier, Pantazis Mouroulis

Proceedings Volume 12235, 1223503 (2022) https://doi.org/10.1117/12.2632552

KEYWORDS: Spectroscopy, Telescopes, Sensors, Optical design, Optical alignment, Infrared spectroscopy, Minerals, Space operations, Tolerancing

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Proceedings Article | 30 September 2022 Presentation + Paper

The Visible Mid-wave Dyson Imaging Spectrometer (VMDIS)

Quentin Vinckier, Robert Green, Pantazis Mouroulis, Peter Sullivan, Christopher Smith, Timothy Lin, Mason Mok, Daniel Preston, Cole Meyers, Holly Bender, Zachary Small, Bethany Ehlmann, Abigail Fraeman

Proceedings Volume 12235, 1223504 (2022) https://doi.org/10.1117/12.2632315

KEYWORDS: Optical alignment, Imaging spectrometry, Remote sensing, Optical design, Hyperspectral imaging

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The Visible Mid-wave Dyson Imaging Spectrometer (VMDIS) is a JPL-developed prototype instrument whose main goal is to address three key technical challenges for the next generation of imaging spectrometers for solar system exploration: (1) High signal-to-noise ratio (SNR) measurements for mapping of minerals and volatiles on solar system targets including comets, asteroids, rocky moons, icy moons, and planets especially Mars; (2) Miniaturization for low-cost mission platforms (reducing the size, mass, and power requirements compared to current options); and (3) excellent spectral cross-track and spectral-spatial uniformity required by todays advanced algorithms for rigorous quantitation with uncertainties. The core of VMDIS is the imaging spectrometer instrument: an optically fast F/1.8 Dyson imaging spectrometer covering a spectral range from 600 nm to 3600 nm, with a spectral sampling of 7 nm. Different telescopes can be used with different implementations of VMDIS to tailor the IFOV and FOV of the instrument. With its prototype telescope, the instrument enables a field of view (FOV) of 28°, with an instantaneous FOV of 0.5 milliradians subtended by each 18 μm cross-track pixel. The size of the VMDIS prototype including the telescope and heritage electronics is roughly equal to 3U (3 units – 1 unit measuring approximately 10×10×10 cm), with a mass < 8 kg and payload power < 40 W. With next generation electronics in development this mass falls below 3 kg. We present an overview of the optical, mechanical, and thermal design of VMDIS, which is required to fabricate this instrument within very demanding resource allocations. The design of the signal chain electronics is also detailed. In addition, preliminary alignment, characterization, and calibration measurements, obtained with the instrument operating in relevant space-type environment, are also discussed. While tested with an available 30-μm detector array, VMDIS is designed for a 18-μm digital readout detector array. VMDIS is intended to pave the way for future low-cost, small form factor imaging spectrometers with state-of-the-art performance in terms of combination of spectral range, high throughput, exceptional uniformity, as well as configuration flexibility for both orbital and landed mission, for the next decade and beyond.

Proceedings Article | 22 August 2020 Paper

Compact imaging spectrometer for planetary missions

Pantazis Mouroulis, Robert Green, Daniel Wilson, Christopher Smith, Myrtle Lin

Proceedings Volume 11504, 1150406 (2020) https://doi.org/10.1117/12.2568062

KEYWORDS: Spectroscopy, Tolerancing, Sensors, Optical design, Assembly tolerances

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SPIE Journal Paper | 10 October 2018

Snow and Water Imaging Spectrometer: mission and instrument concepts for earth-orbiting CubeSats

Holly Bender, Pantazis Mouroulis, Heidi Dierssen, Thomas Painter, David Thompson, Christopher Smith, Johannes Gross, Robert Green, Justin Haag, Byron Van Gorp, Ernesto Diaz

JARS, Vol. 12, Issue 04, 044001, (October 2018) https://doi.org/10.1117/12.10.1117/1.JRS.12.044001

KEYWORDS: Spectroscopy, Sensors, Signal to noise ratio, Clouds, Spatial resolution, Satellites, Space operations, Calibration, Climatology, Atmospheric modeling

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Proceedings Article | 18 September 2018 Paper

Snow and Water Imaging Spectrometer (SWIS): CubeSat configuration and design

Holly Bender, Pantazis Mouroulis, John Bellardo, Cole Gillespie, Grigory Heaton, Michael Fernandez, Nicholas Sizemore, Andres Andrade, Elliott Liggett, Peter Sullivan, Didier Keymeulen, Christopher Smith, Megan Gibson

Proceedings Volume 10769, 107690B (2018) https://doi.org/10.1117/12.2320809

KEYWORDS: Space operations, Spectroscopy, Telescopes, Electronics, X band, Data acquisition, Antennas, Clouds, Transmitters, Snow cover, Freshwater and coastal sensing, Imaging spectrometry, Imaging spectroscopy, Satellites

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Proceedings Article | 5 June 2018 Paper

Optical and mechanical designs of the multi-band SWIR receiver for the Lunar Flashlight CubeSat mission

Quentin Vinckier, Karlton Crabtree, Megan Gibson, Christopher Smith, Udo Wehmeier, Paul Hayne, R. Glenn Sellar

Proceedings Volume 10690, 106901I (2018) https://doi.org/10.1117/12.2302914

KEYWORDS: Receivers, Reflectometry, Short wave infrared radiation, Reflectivity, Optical design, Mechanical engineering, Radiometry

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Proceedings Article | 5 September 2017 Paper

Snow and Water Imaging Spectrometer (SWIS): first alignment and characterization results

Holly Bender, Pantazis Mouroulis, Justin Haag, Christopher Smith, Byron Van Gorp

Proceedings Volume 10402, 104020A (2017) https://doi.org/10.1117/12.2272602

KEYWORDS: Spectroscopy, Imaging systems, Sensors, Calibration, Infrared sensors, Imaging spectroscopy, Snow cover, Telescopes, System integration, Optical instrument design

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Proceedings Article | 2 May 2016 Paper

Snow and Water Imaging Spectrometer (SWIS): development of a CubeSat-compatible instrument

Holly Bender, Pantazis Mouroulis, Johannes Gross, Thomas Painter, Christopher Smith, Daniel Wilson, Colin Smith, Byron Van Gorp, Michael Eastwood

Proceedings Volume 9881, 98810V (2016) https://doi.org/10.1117/12.2228211

KEYWORDS: Spectroscopy, Imaging systems, Sensors, Telescopes, Calibration, Imaging systems, Space operations, Space telescopes, Detector development, Coating, Stray light

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Proceedings Article | 1 September 2015 Paper

Snow and Water Imaging Spectrometer (SWIS): optomechanical and system design for a CubeSat-compatible instrument

Holly Bender, Pantazis Mouroulis, Christopher Smith, Colin Smith, Byron Van Gorp, Michael Eastwood, Johannes Gross

Proceedings Volume 9611, 961103 (2015) https://doi.org/10.1117/12.2190013

KEYWORDS: Spectroscopy, Imaging systems, Calibration, Staring arrays, Space telescopes, Telescopes, Sensors, Reflectivity, Space operations, Diffusers

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Showing 5 of 13 publications

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