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Proceedings Paper

Hyper-spectral computer tomographic detection of OH radicals in the upper and middle atmosphere
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Paper Abstract

OH radicals in the upper and middle atmosphere are important oxidants and play an important role in atmospheric photochemistry. Current space-based payload can only obtain profile information. In view of the inhomogeneity of atmospheric two-dimensional distribution field, a hyper-spectral OH radical tomography detection scheme based on onedimensional imaging spatial heterodyne spectroscopy is proposed. Horizontal and vertical multi-dimensional atmosphere are detected by combining two orthogonal field-of-view one-dimensional imaging spatial heterodyne spectrometers, and the multi-line-of-sight crossed required for atmospheric tomography detection is achieved by platform movement. Based on this technical scheme, the optical and structural design of the prototype is carried out, and the data form of the interferogram acquired on-orbit is simulated. OH radicals can’t be measured on the ground, so the OH radicals can be obtained by photochemical reaction chamber in the laboratory. The OH measurement results obtained by the prototype agree with the HITRAN simulation results.

Paper Details

Date Published: 18 December 2019
PDF: 9 pages
Proc. SPIE 11337, AOPC 2019: Optical Spectroscopy and Imaging, 113370G (18 December 2019); doi: 10.1117/12.2542533
Show Author Affiliations
Hailiang Shi, Anhui Institute of Optics and Fine Mechanics (China)
Key Lab. of Optical Calibration and Characterization (China)
Xiong Wei, Anhui Institute of Optics and Fine Mechanics (China)
Key Lab. of Optical Calibration and Characterization (China)
Haiyan Luo, Anhui Institute of Optics and Fine Mechanics (China)
Key Lab. of Optical Calibration and Characterization (China)
Zhiwei Li, Anhui Institute of Optics and Fine Mechanics (China)
Key Lab. of Optical Calibration and Characterization (China)


Published in SPIE Proceedings Vol. 11337:
AOPC 2019: Optical Spectroscopy and Imaging
Jin Yu; Zhe Wang; Vincenzo Palleschi; Mengxia Xie; Yuegang Fu, Editor(s)

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