From Event: SPIE Commercial + Scientific Sensing and Imaging, 2018
A linear mode photon counting HgCdTe avalanche photodiode (APD) focal plane array (FPA) detector was developed for space lidar applications. An integrated detector cooler assembly (IDCA) was manufactured using a miniature Stirling cooler. The HgCdTe APD demonstrated a greater than 60% photon detection efficiency from 0.9 to 4.3 μm wavelength and a dark count rate less than 250,000/s. The IDCA cooled the FPA to 110K from ambient room temperature at a total electrical power of 7 W. The IDCA has passed environmental tests, including vibration, thermal cycling and thermal vacuum tests.
Xiaoli Sun, James Abshire, Michael Krainak, Wei Lu, Jeff Beck, William Sullivan, Pradip Mitra, Dick Rawlings, Renny Fields, David Hinkley, and Bradley Hirasuna, "Single photon HgCdTe avalanche photodiode and integrated detector cooler assemblies for space lidar applications," Proc. SPIE 10659, Advanced Photon Counting Techniques XII, 106590C (Presented at SPIE Commercial + Scientific Sensing and Imaging: April 18, 2018; Published: 14 May 2018); https://doi.org/10.1117/12.2305017.
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