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2. From Laboratory to CubeSat - Room Temperature Absolute Bolometers for Laser Power Standards, Solar Spectral Irradiance, and Total Solar Irradiance

Author

Stephens, Michelle, Tomlin, Nathan A., Yung, Chris, Ryger, Ivan, White, Malcolm, Lehman, John, Harber, David, Kopp, Greg, Heuerman, Karl, Sprunck, Jacob, Castleman, Zach, Drake, Ginger, and Richard, Erik

Subjects
Physics::Instrumentation and Detectors, Astrophysics::Instrumentation and Methods for Astrophysics
Abstract

Planar micromachined silicon bolometers with carbon nanotube absorbers provide high accuracy, compact, and rugged radiation detection. We are building on the success of our silicon micromachined planar detectors operating at cryogenic temperatures1 to develop similar electrical substitution bolometers that operate at room temperatures. These bolometers currently have applications as both laboratory standards for laser optical power and for solar irradiance monitors in space. Room temperature operation of these detectors for the above applications presents a different set of technical challenges from similar cryogenic detectors. The materials used for temperature measurement are different and inherently noisier, time constants are longer, and practical applications demand a greater dynamic range in power and a larger detector size. We will describe the design and performance of three room temperature devices. The first is a laboratory based room temperature device for precision CW optical power measurements (Next-Gen C). This standard operates from 0.4 to 2 um and over a dynamic range of 50 uW to 100 mW. The second is a bolometer designed for solar spectral irradiance measurement that will be part of the Compact Spectral Irradiance Monitor (CSIM) CubeSat mission, scheduled for launch in the Fall of 2018. The third is a bolometer under development for total solar irradiance measurement as part of the Compact Total Irradiance Monitor (CTIM) instrument development.

Published
2018

3. The compact spectral irradiance monitor flight demonstration mission

Author

Richard, Erik C., primary, Harber, David M., additional, Drake, Ginger, additional, Rutkowsi, Joel, additional, Castleman, Zach, additional, Smith, Matthew, additional, Sprunck, Jacob, additional, Zheng, Wengang, additional, Smith, Paul, additional, Fisher, Melanie, additional, Sims, Alan, additional, Cervelli, Beth, additional, Fowle, Maxwell, additional, Miller, Marc, additional, Chambliss, Michael, additional, Woods, Thomas, additional, Pilewskie, Peter, additional, Yung, Christopher, additional, Stephens, Michelle, additional, Tomlin, Nathan, additional, White, Malcolm, additional, and Lehman, John, additional

Published
2019
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4. Compact total irradiance monitor flight demonstration

Author

Harber, David M., primary, Castleman, Zach, additional, Drake, Ginger, additional, Van Dreser, Samuel, additional, Farber, Nat, additional, Heuerman, Karl, additional, Miller, Marc, additional, Rutkowski, Joel, additional, Sims, Alan, additional, Sprunck, Jacob, additional, Straatsma, Cameron, additional, Wanamaker, Isaac, additional, Zheng, Wengang, additional, Kopp, Greg, additional, Richard, Erik C., additional, Pilewskie, Peter, additional, Tomlin, Nathan, additional, Stephens, Michelle, additional, Yung, Chris, additional, White, Malcolm, additional, and Lehman, John, additional

Published
2019
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5. Compact spectral irradiance monitor flight demonstration mission.

Author

Richard, Erik, Harber, Dave, Drake, Ginger, Rutkowski, Joel, Castleman, Zach, Smith, Matthew, Sprunck, Jacob, Wengeng Zheng, Smith, Paul, Fisher, Melanie, Sims, Alan, Cervelli, Beth, Fowle, Maxwell, Miller, Marc, Chambliss, Michael, Woods, Tom, Pilewskie, Peter, Yung, Christopher, Stephens, Michelle, and Tomlin, Nathan

Published
2019
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6. Compact total irradiance monitor flight demonstration.

Author

Harber, Dave, Castleman, Zach, Drake, Ginger, Van Dreser, Samuel, Farber, Nat, Heuerman, Karl, Miller, Marc, Rutkowski, Joel, Sims, Alan, Sprunck, Jacob, Straatsma, Cameron, Wanamaker, Isaac, Wengang Zheng, Kopp, Greg, Richard, Erik, Pilewskie, Peter, Tomlin, Nathan, Stephens, Michelle, Yung, Christopher, and White, Malcolm

Published
2019
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9. Compact total irradiance monitor flight demonstration

Author

Pagano, Thomas S., Norton, Charles D., Babu, Sachidananda R., Harber, David, Castleman, Zach, Drake, Ginger, Van Dreser, Samuel, Farber, Nat, Heuerman, Karl, Miller, Marc, Rutkowski, Joel, Sims, Alan, Sprunck, Jacob, Straatsma, Cameron, Wanamaker, Isaac, Zheng, Wengang, Kopp, Greg, Richard, Erik, Pilewskie, Peter, Tomlin, Nathan, Stephens, Michelle, Yung, Christopher, White, Malcolm, and Lehman, John

Published
2019
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13. Radiometric flight results from the HyperSpectral Imager for Climate Science (HySICS).

Author

Kopp, Greg, Smith, Paul, Belting, Chris, Drake, Ginger, Espejo, Joey, Heuerman, Karl, Lanzi, James, and Stuchlik, Dave

Subjects
RADIOMETRY, CLIMATOLOGY, SOLAR spectra, HYPERSPECTRAL imaging systems, ASTRONOMICAL observations
Abstract

Long-term monitoring of the Earth-reflected solar-spectrum is necessary for discerning and attributing changes in climate. High radiometric-accuracy enables such monitoring over decadal timescales with non-overlapping instruments, and high precision enables trend detection on shorter timescales. The Hyperspectral Imager for Climate Science (HySICS) is a visible and near-infrared spatial/spectral imaging-spectrometer intended to ultimately achieve ~ 0.2% radiometric accuracies of Earth scenes from space, providing an order-of-magnitude improvement over existing space-based imagers. On-orbit calibrations from measurements of spectral solar irradiances acquired by direct views of the Sun enable radiometric calibrations with superior long-term stability than currently possible with any manmade spaceflight light-source or detector. Solar- and lunar-observations enable in-flight focal-plane-array flat-fielding and other instrument calibrations. The HySICS has demonstrated this solar cross-calibration technique for future spaceflight instrumentation via two high-altitude balloon flights. The second of these two flights acquired high radiometric-accuracy measurements of the ground, clouds, the Earth's limb, and the Moon. Those results and the details of the uncertainty analyses of those flight data are described. [ABSTRACT FROM AUTHOR]

Published
2016
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18. Compact spectral irradiance monitor flight demonstration mission

Author

Pagano, Thomas S., Norton, Charles D., Babu, Sachidananda R., Richard, Erik, Harber, Dave, Drake, Ginger, Rutkowsi, Joel, Castleman, Zach, Smith, Matthew, Sprunck, Jacob, Zheng, Wengang, Smith, Paul, Fisher, Melanie, Sims, Alan, Cervelli, Beth, Fowle, Maxwell, Miller, Marc, Chambliss, Michael, Woods, Thomas, Pilewskie, Peter, Yung, Christopher, Stephens, Michelle, Tomlin, Nathan, White, Malcolm, and Lehman, John

Published
2019
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