Design of High-Transmission Plasmonic Wavelength and Polarization Filters for Infrared Photodetectors

被引：0

作者：

Wenger, T. ^{[1
]}

Soibel, A. ^{[1
]}

机构：

[1] CALTECH, Jet Prop Lab, 4800 Oak Grove Dr, Pasadena, CA 91011 USA

来源：

2020 FOURTEENTH INTERNATIONAL CONGRESS ON ARTIFICIAL MATERIALS FOR NOVEL WAVE PHENOMENA (METAMATERIALS) | 2020年

基金：

美国国家航空航天局;

关键词：

COLOR FILTERS;

D O I：

10.1109/metamaterials49557.2020.9285049

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We have designed plasmonic filters that simultaneously perform wavelength and polarization filtering in the wavelength range 3 - 5 micrometers. In this work we outline the design and present the simulated results of our filters. The filters consist of subwavelength slits in a thin metal sheet which is deposited on top of a gallium antimonide (GaSb) substrate and a spacer layer of SiO2. This configuration makes our filters suitable for integration with GaSb-based infrared photodetectors and photodetector arrays that are used in space applications. Our work opens up the possibility of using these detector arrays for highly compact Earth-observing infrared polarimeters and multispectral imaging applications.

引用

页数：3

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