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Multi-color QWIP FPAs for hyperspectral thermal emission instruments

Show simple item record Soibel, Alexander Luong, Ed Mumolo, Jason M. Liu, John Rafol, Sir B. Keo, Sam A. Johnson, William Willson, Dan Hill, Cory J. Ting, David Z.-Y. Gunapala, Sarath D. 2013-03-29T20:48:56Z 2013-03-29T20:48:56Z 2013-02-04
dc.identifier.citation SPIE Photonics West, San Francisco, California, February 1-6, 2013 en_US
dc.identifier.clearanceno 12-5842
dc.description.abstract Infrared focal plane arrays (FPAs) covering broad mid- and long-IR spectral ranges are the central parts of the spectroscopic and imaging instruments in several Earth and planetary science missions. To be implemented in the space instrument these FPAs need to be large-format, uniform, reproducible, low-cost, low 1/f noise, and radiation hard. Quantum Well Infrared Photodetectors (QWIPs), which possess all needed characteristics, have a great potential for implementation in the space instruments. However a standard QWIP has only a relatively narrow spectral coverage. A multi-color QWIP, which is compromised of two or more detector stacks, can to be used to cover the broad spectral range of interest. We will discuss our recent work on development of multi-color QWIP for Hyperspectral Thermal Emission Spectrometer instruments. We developed QWIP compromising of two stacks centered at 9 and 10.5 μm, and featuring 9 grating regions optimized to maximize the responsivity in the individual subbands across the 7.5-12 μm spectral range. The demonstrated 1024x1024 QWIP FPA exhibited excellent performance with operability exceeding 99% and noise equivalent differential temperature of less than 15 mK across the entire 7.5-12 μm spectral range. en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2012. en_US
dc.subject infrared detectors en_US
dc.subject infrared FPA en_US
dc.subject Quantum Well Infrared Photodetectors (QWIPs)P en_US
dc.title Multi-color QWIP FPAs for hyperspectral thermal emission instruments en_US
dc.type Preprint en_US

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