Support technique of HgCdTe focal plane arrays based on fiberglass bundle used in infrared space camera

Shikui Luo; Guimei Cheng

doi:10.1117/12.2245094

25 October 2016 Support technique of HgCdTe focal plane arrays based on fiberglass bundle used in infrared space camera

Shikui Luo, Guimei Cheng

Proceedings Volume 10157, Infrared Technology and Applications, and Robot Sensing and Advanced Control; 101570Z (2016) https://doi.org/10.1117/12.2245094
Event: International Symposium on Optoelectronic Technology and Application 2016, 2016, Beijing, China

Abstract

HgCdTe focal plane array detector is a key component in infrared space camera. The scale of detector is enlarging continuously due to the unending requirements of better performance. HgCdTe plane array detector needs to work at deep cooling environment and it is encapsulated in dewar package. Support structure is used to support HgCdTe plane array detector in dewar. About 200K difference in temperature exits between the detector and the wall of dewar. In addition to certain support performance, the support structure should possess high adiabatic performance. Contradiction between support performance and adiabatic performance exists in the support structure of HgCdTe plane array detector, and it is intensified due to the scale enlarging of the detector. Then support technique of HgCdTe focal plane arrays based on fiberglass bundle is proposed. Adopting fiberglass bundle, the support performance of support structure is enhanced, but the adiabatic performance of support structure is not reduced obviously. The contradiction between support performance and adiabatic performance according to the support structure is resolved completely. At the end, assembly process of fiberglass bundle in support structure is introduced.

Citation Download Citation

Shikui Luo and Guimei Cheng "Support technique of HgCdTe focal plane arrays based on fiberglass bundle used in infrared space camera", Proc. SPIE 10157, Infrared Technology and Applications, and Robot Sensing and Advanced Control, 101570Z (25 October 2016); https://doi.org/10.1117/12.2245094

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