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Proceedings Paper

Antimonides T2SL mid-wave and long-wave infrared focal plane arrays for Earth remote sensing applications
Author(s): Sarath Gunapala; David Ting; Sir Rafol; Alexander Soibel; Arezou Khoshakhlagh; Sam Keo; Brian Pepper; Anita Fisher; Cory Hill; Thomas Pagano; Paul Lucey; Robert Wright; Miguel Nunes; Luke Flynn; Sachidananda Babu; Parminder Ghuman
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Paper Abstract

In this presentation, we will report our recent efforts in achieving high performance in Antimonides type-II superlattice (T2SL) based infrared photodetectors using the barrier infrared detector (BIRD) architecture. The initial BIRD devices (such as the nBn and the XBn) used either InAs absorber grown on InAs substrate, or lattice-matched InAsSb alloy grown on GaSb substrate, with cutoff wavelengths of ~3.2μm and ~4μm, respectively. While these detectors could operate at much higher temperatures than existing MWIR detectors based on InSb, their spectral responses do not cover the full (3 – 5.5μm) MWIR atmospheric transmission window. The T2SL BIRD devices not only covers the full MWIR atmospheric transmission window, but the full LWIR atmospheric transmission window and beyond. The LWIR detectors based on the BIRD architecture has also demonstrated significant operating temperature advantages over those based on traditional p-n junction designs. Two 6U SmalSat missions CIRAS (Cubesat Infrared Atmospheric Sounder) and HyTI (Hyperspectral Thermal Imager) are based on JPL’s T2SL BIRD focal plane arrays (FPAs). Based on III-V compound semiconductors, the BIRD FPAs offer a breakthrough solution for the realization of low cost (high yield), high-performance FPAs with excellent uniformity and pixel-to-pixel operability.

Paper Details

Date Published: 31 January 2020
PDF: 11 pages
Proc. SPIE 11288, Quantum Sensing and Nano Electronics and Photonics XVII, 112880K (31 January 2020); doi: 10.1117/12.2543896
Show Author Affiliations
Sarath Gunapala, Jet Propulsion Lab. (United States)
David Ting, Jet Propulsion Lab. (United States)
Sir Rafol, Jet Propulsion Lab. (United States)
Alexander Soibel, Jet Propulsion Lab. (United States)
Arezou Khoshakhlagh, Jet Propulsion Lab. (United States)
Sam Keo, Jet Propulsion Lab. (United States)
Brian Pepper, Jet Propulsion Lab. (United States)
Anita Fisher, Jet Propulsion Lab. (United States)
Cory Hill, Jet Propulsion Lab. (United States)
Thomas Pagano, Jet Propulsion Lab. (United States)
Paul Lucey, Univ. of Hawai'i at Manoa (United States)
Robert Wright, Univ. of Hawai'i at Manoa (United States)
Miguel Nunes, Univ. of Hawai'i at Manoa (United States)
Luke Flynn, Univ. of Hawai'i at Manoa (United States)
Sachidananda Babu, NASA Earth Science Technology Office (United States)
Parminder Ghuman, NASA Earth Science Technology Office (United States)

Published in SPIE Proceedings Vol. 11288:
Quantum Sensing and Nano Electronics and Photonics XVII
Manijeh Razeghi; Jay S. Lewis; Giti A. Khodaparast; Pedram Khalili, Editor(s)

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