Development status of T2SL infrared detector in JAXA

Katayama, Haruyoshi; Hirose, Makoto; Sato, Shinri; Shinozaki, Kazuo; Kimura, Tomoki; Balasekaran, Sundararajan; Ishiguro, Hiroshi; Iguchi, Yasuhiro; Kimata, Masafumi

doi:10.1117/12.2591334

Cited by 2 publications

(1 citation statement)

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“…Based on the mission concept, we plan to develop the Type-II superlattice (T2SL) detector array as an integrated Dewar cooler assembly. We have been developing T2SL detectors in JAXA for decades [11]. Currently, the feasibility of T2SL detector technology is confirmed through the fabrication of 1Kx1K FPA and the performance evaluation with the test driver equipment.…”

Section: Development Of T2sl Detector Array and Idcamentioning

confidence: 99%

Conceptual study of the next-generation compact infrared camera

Suganuma,

Sato,

Hirose

et al. 2023

Sensors, Systems, and Next-Generation Satellites XXVII

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New concepts of compact Thermal Infrared (TIR) cameras were studied as the successor to the Compact Infrared Camera (CIRC) onboard the ALOS-2 satellite launched in 2014. The CIRC, mounting an uncooled bolometer array and weighing only 3 kg, has accomplished eight-year high-resolution (GSD~200 m) TIR earth observations, mainly monitoring active volcanos and wildfires. The next-generation compact camera should have similar size, weight, and power consumption (SWaP) performances to CIRC. Ground resolutions of 30 m to 50 m or below should be needed to understand temperature distributions for crop fields or to measure temperatures for narrow waters and fish farms in Japan. Uncooled bolometer cameras could not gain high MTF from earth-centered platforms to achieve that spatial resolution because of their sizeable thermal time constants. We are choosing cooled detector arrays that are sensitive in mid-wavelength infrared (MWIR, 3 μm to 5 μm). One of the technical advantages of MWIR wavelength is that optics will be much smaller than for longer wavelengths. We are studying the conceptual design of a compact camera that mounts the cooled Type-II Superlattice (T2SL) detector array, which JAXA has developed.

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Section: Development Of T2sl Detector Array and Idcamentioning

confidence: 99%