MCT APD Detection System for Atmospheric Profiling Applications Using Two-Micron Lidar
NASA Langley Research Center, Hampton, Virginia 23681, USA
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Published online: 7 July 2020
An advanced detection system, based on mercury cadmium telluride avalanche photodiodes array, was implemented within a 2-μm lidar. Detection system characterization was conducted for performance evaluation including settling time, noise-equivalent-power (NEP) and dynamic range. Results indicated an average NEP of 1.4 fW/Hz1/2 per pixel. Lidar range resolved profiling demonstrated the dynamic range capability by measuring near-field aerosol scattering and far-field clouds reflection simultaneously.
© The Authors, published by EDP Sciences, 2020
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