Path analysis and suppression of self-generated thermal emission in infrared optical systems

Xiuwen Yao; Jing Xiao; Bin Zhang; Shuguang Zeng; Pan He

doi:10.1117/12.867592

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14 October 2010 Path analysis and suppression of self-generated thermal emission in infrared optical systems

Xiuwen Yao, Jing Xiao, Bin Zhang, Shuguang Zeng, Pan He

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Proceedings Volume 7654, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes; 76540U (2010) https://doi.org/10.1117/12.867592
Event: 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies, 2010, Dalian, China

Abstract

In this paper, simulation model of infrared optical systems with Cassegrain structure has been built up, and the stray radiation analysis has been performed. The contributions of each component to stray radiation of infrared system and the corresponding optical path of stray radiation have been studied in detail. On this basis, the flux distributions of the stray radiation of the major contributors on the detector have been simulated, and the uniformity of the flux distributions has also been discussed. In order to suppress the stray radiation of the system, the corresponding methods have been adopted according to different paths of the stray radiation. Finally, the flux of stray radiation and the uniformity of the flux distributions on the detector before and after taking the suppression measures have been compared and analyzed. The results indicate that the methods for suppressing the stray radiation according to the characteristics of stray radiation source can effectively improve the stray radiation performance of the system, resulting in the improvement of the detection performance of the system.

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Xiuwen Yao, Jing Xiao, Bin Zhang, Shuguang Zeng, and Pan He "Path analysis and suppression of self-generated thermal emission in infrared optical systems", Proc. SPIE 7654, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 76540U (14 October 2010); https://doi.org/10.1117/12.867592

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