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Proceedings Paper

Design of double wedge depolarizer for grating imaging spectrometer
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Paper Abstract

In this paper, we study a compact double wedge depolarizer for grating imaging spectrometers. Based on introduction of its working principle, the general relationship between polarization sensitivity of an optical system and the structural parameters of depolarizer is established by means of Muller matrix and Stokes vector. Through numerical analysis it is pointed out that the depolarizer has the best depolarization performance with appropriate crystal thickness when the angle of the first wedge crystal optical axis is 45° respect to grating groove orientation and the two optical axis of the crystal is mutually orthogonal. Finally, an example, a depolarizer for grating imaging spectrometers is designed and its performance is evaluated.

Paper Details

Date Published: 8 March 2017
PDF: 10 pages
Proc. SPIE 10255, Selected Papers of the Chinese Society for Optical Engineering Conferences held October and November 2016, 1025522 (8 March 2017); doi: 10.1117/12.2267685
Show Author Affiliations
Yangming Jin, Soochow Univ. (China)
Weimin Shen, Soochow Univ. (China)


Published in SPIE Proceedings Vol. 10255:
Selected Papers of the Chinese Society for Optical Engineering Conferences held October and November 2016
Yueguang Lv; Jialing Le; Hesheng Chen; Jianyu Wang; Jianda Shao, Editor(s)

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