640 x 512 pixel long-wavelength infrared narrowband, multiband, and broadband QWIP focal plane arrays

被引:52
作者
Gunapala, SD [1 ]
Bandara, SV [1 ]
Liu, JK [1 ]
Rafol, SB [1 ]
Mumolo, JM [1 ]
机构
[1] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
基金
美国国家航空航天局;
关键词
broadband; focal plane array; infrared camera; long-wavelength infrared; mid-wavelength infrared; multiband; narrowband; quantum-well infrared photodetectors (QWIP);
D O I
10.1109/TED.2003.818818
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
A 640 x 512 pixel, long-wavelength cutoff, narrowband (Deltalambda/lambdasimilar to10%) quantum-well infrared photodetector QWIP) focal plane array (M), a four-band QWIP FPA in the 4-15 mum spectral region, and a broadband (Deltalambda/lambda similar to 42%) QWIP FPA having a 15.4 mum cutoff have been demonstrated. In this paper, we discuss the electrical and optical characterization of these FPAs, and their performance. In addition, we discuss the development of a very sensitive (NEDT similar to10.6 mK) 640 x 512 pixel thermal imaging camera having a 9 mum cutoff.
引用
收藏
页码:2353 / 2360
页数:8
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