Towards the next generation of L-APD MOVPE HgCdTe arrays: beyond the SAPHIRA 320 x 256

Donald N. B. Hall; Ian Baker; Gert Finger

doi:10.1117/12.2234370

29 July 2016 Towards the next generation of L-APD MOVPE HgCdTe arrays: beyond the SAPHIRA 320 x 256

Donald N. B. Hall, Ian Baker, Gert Finger

Proceedings Volume 9915, High Energy, Optical, and Infrared Detectors for Astronomy VII; 99150O (2016) https://doi.org/10.1117/12.2234370
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

The Leonardo (formerly Selex ES) SAPHIRA 320 X 256 @24μm pitch L-APD MOVPE HgCdTe array is now generally accepted as the sensor of choice for near infrared (NIR – 0.8 to 2.5μm) adaptive optics (AO) wavefront (WF) sensing using natural guide stars. With larger formats and improved readout integrated circuits (ROICs), this technology shows great promise for more sophisticated wavefront correction and also, potentially, lower background astronomy applications. This opens the path to larger format arrays optimized for either AO WF sensing or low background applications. We present Selex-UH initiatives in both areas.

Citation Download Citation

Donald N. B. Hall, Ian Baker, and Gert Finger "Towards the next generation of L-APD MOVPE HgCdTe arrays: beyond the SAPHIRA 320 x 256", Proc. SPIE 9915, High Energy, Optical, and Infrared Detectors for Astronomy VII, 99150O (29 July 2016); https://doi.org/10.1117/12.2234370

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