World's first demonstration of type-II superlattice dual band 640x512 LWIR focal plane array

被引：11
作者：
Huang, Edward Kwei-wei [1 ]
Razeghi, Manijeh [1 ]
机构：
[1] Northwestern Univ, Dept Elect Engn & Comp Sci, Ctr Quantum Devices, Evanston, IL 60208 USA
来源：
QUANTUM SENSING AND NANOPHOTONIC DEVICES IX | 2012年 / 8268卷
关键词：
Third generation; Infrared imaging; Type-II superlattice; InAs/GaSb/AlSb; Photodetectors; LWIR; VLWIR; Large format; Two color; Dual band; Focal plane arrays;
D O I：
10.1117/12.913662
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：
High resolution multi-band infrared detection of terrestrial objects is useful in applications such as long range and high altitude surveillance. In this paper, we present a 640 by 512 type-II superlattice focal plane array (FPA) in the long-wave infrared (LWIR) suitable for such purposes, featuring 100% cutoff wavelengths at 9.5 mu m (blue channel) and 13 mu m (red). The dual band camera is single-bump hybridized to an Indigo 30 mu m pitch ISC0905 read-out integrated circuit. Test pixels revealed background limited behavior with specific detectivities as high as similar to 5x10(11) Jones at 7.9 mu m (blue) and similar to 1x10(11) Jones at 10.2 mu m (red) at 77K.
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页数：8
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