Cold radiation shields for IR detector arrays |
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| Affiliation: | 1. V. Lashkaryov Institute of Semiconductor Physics NAS of Ukraine, 41 pr. Nauky, Kyiv 03028, Ukraine;2. SMI Lab Ltd, 50/52, Primorska Str., Svitlovodsk 27500, Ukraine;1. Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin 130033, China;2. University of Chinese Academy of Sciences, Beijing 100049, China;1. Si-Vision LLC, Cairo, Egypt;2. Integrated Circuits Lab, Faculty of Engineering, Ain Shams University, Cairo, Egypt |
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| Abstract: | Off-set and integral cold shields are compared for cold shield shading effects when used with frontside and backside irradiated IR arrays. The integral cold shield, within its range of application, eliminates cold shield shading for frontside arrays and is more desirable. For backside arrays, off-set cold shield shading can be significantly reduced to tolerable levels when the array is prepared on thick transparent substrates. For these arrays, the integral cold shield is more difficult to implement and thus less desirable than the off-set cold shield. |
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