Development of type II superlattice detector for future space applications at JAXA

Haruyoshi Katayama; Junpei Murooka; Masataka Naitoh; Tadashi Imai; Ryota Sato; Eichi Tomita; Munetaka Ueno; Hiroshi Murakami; Satoshi Kawasaki; Kunihiko Bito; Masafumi Kimata; Takahiro Kitada; Toshiro Isu; Mikhail Patrashin; Iwao Hosako

doi:10.1117/12.919006

31 May 2012 Development of type II superlattice detector for future space applications at JAXA

Haruyoshi Katayama, Junpei Murooka, Masataka Naitoh, Tadashi Imai, Ryota Sato, Eichi Tomita, Munetaka Ueno, Hiroshi Murakami, Satoshi Kawasaki, Kunihiko Bito, Masafumi Kimata, Takahiro Kitada, Toshiro Isu, Mikhail Patrashin, Iwao Hosako

Author Affiliations +

Proceedings Volume 8353, Infrared Technology and Applications XXXVIII; 83530V (2012) https://doi.org/10.1117/12.919006
Event: SPIE Defense, Security, and Sensing, 2012, Baltimore, Maryland, United States

Abstract

The performance of space-borne infrared detectors is required higher sensitivity, higher resolution, or larger format in comparison with that of ground-based infrared detectors. In order to realize higher mission requirements, JAXA decided to position the infrared detector technology as one of the strategic technologies of JAXA and to promote the development of the infrared detectors. InAs/GaSb Type II superlattice (T2SL) is the only known infrared material that has a theoretically predicted higher performance than HgCdTe. If the T2SL detector is realized, it can be applied for high sensitivity infrared sensors, which are required for many advanced instruments such as an imaging Fourier Transform Spectrometer. The final goal of the T2SL detector development is to realize an array detector having a cutoff wavelength of λc=15μm. We have started a basic research on the T2SL detector. In this paper, we report on the first results of the development of T2SL detectors of mid-wave infrared regime. The detector structure is a pin photodiode with SL of 9 InAs monolayers (MLs) and 7 GaSb MLs. We present results of optical evaluation of the detector. The cutoff wavelength is 5.5μm at 30K. The responsivity is 0.33±0.05A/W at 4.5 μm.

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Haruyoshi Katayama, Junpei Murooka, Masataka Naitoh, Tadashi Imai, Ryota Sato, Eichi Tomita, Munetaka Ueno, Hiroshi Murakami, Satoshi Kawasaki, Kunihiko Bito, Masafumi Kimata, Takahiro Kitada, Toshiro Isu, Mikhail Patrashin, and Iwao Hosako "Development of type II superlattice detector for future space applications at JAXA", Proc. SPIE 8353, Infrared Technology and Applications XXXVIII, 83530V (31 May 2012); https://doi.org/10.1117/12.919006

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KEYWORDS

Sensors

Detector development

Infrared sensors

Superlattices

Infrared detectors

Crystals

Gallium antimonide

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