SWIR polarimetric system of spaceborne particulate observing scanning polarimeter

Hongchun Yang; Jin Hong; Maoxin Song; Peng Zou; Zhenhai Liu; Benyong Yang

doi:10.1117/12.2521970

12 March 2019 SWIR polarimetric system of spaceborne particulate observing scanning polarimeter

Hongchun Yang, Jin Hong, Maoxin Song, Peng Zou, Zhenhai Liu, Benyong Yang

Proceedings Volume 11023, Fifth Symposium on Novel Optoelectronic Detection Technology and Application; 1102323 (2019) https://doi.org/10.1117/12.2521970
Event: Fifth Symposium on Novel Optoelectronic Detection Technology and Application, 2018, Xi'an, China

Abstract

Particulate Observing Scanning Polarimeter (POSP) is a spaceborne spectropolarimetric sensor to map radiometric and polarimetric information of global atmospheric particulate matter. POSP has three SWIR bands, respectively are 1.38μm, 1.61μm and 2.25μm. So the SWIR polarimetric system is designed, which has the characteristic of division of aperture and division of amplitude to realize the simultaneous polarization measurement. The system has two identical optical paths, their orientation is 45 degree, and it can measure first three Stokes parameters. In order to realize to cool the InGaAs detectors below -60°C, combined with active cooler and passive cooler, the InGaAs detectors assembly and cooling system are integrated compact. The thermal vacuum test shows that cooling system could meet the cooling requirements of InGaAs detectors.

Citation Download Citation

Hongchun Yang, Jin Hong, Maoxin Song, Peng Zou, Zhenhai Liu, and Benyong Yang "SWIR polarimetric system of spaceborne particulate observing scanning polarimeter", Proc. SPIE 11023, Fifth Symposium on Novel Optoelectronic Detection Technology and Application, 1102323 (12 March 2019); https://doi.org/10.1117/12.2521970

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