Advancing large format MCT/Si infrared detectors for astrophysics research

Lazar Buntic; Donald F. Figer; Justin P. Gallagher; Edwin Alexani

doi:10.1117/12.3019111

27 August 2024 Advancing large format MCT/Si infrared detectors for astrophysics research

Lazar Buntic, Donald F. Figer, Justin P. Gallagher, Edwin Alexani

Proceedings Volume 13103, X-Ray, Optical, and Infrared Detectors for Astronomy XI; 1310306 (2024) https://doi.org/10.1117/12.3019111
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Abstract

High-performance large-format infrared (IR) detectors for astronomy will be in high demand for the next generation of ground- and space-based IR observatories. We present advances in previously published characterization results of HgCdTe-on-Silicon (MCT/Si) IR detectors developed by the RIT Center for Detectors (CfD) and Raytheon Vision Systems (RVS) through the SWIR Advanced Technology Instruments for NSF and NASA (SATIN) development program. The program successfully demonstrates the feasibility of MCT/Si detectors as a competitive architecture for astronomy applications, and we believe that future MCT/Si detectors will lower the cost of IR focal plane arrays by approximately a factor of five. We analyze the correlation between p-n junction size and quantum efficiency and full well depth, and present initial results from an observing program carried out with the best detector of the SATIN project. Finally, we outline a plan to conduct proton and heavy ion radiation testing of the devices to evaluate the radiation tolerance of the MCT/Si technology for space-based applications.

Conference Presentation

Citation Download Citation

Lazar Buntic, Donald F. Figer, Justin P. Gallagher, and Edwin Alexani "Advancing large format MCT/Si infrared detectors for astrophysics research", Proc. SPIE 13103, X-Ray, Optical, and Infrared Detectors for Astronomy XI, 1310306 (27 August 2024); https://doi.org/10.1117/12.3019111

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