QWIP structural optimization

被引：3

作者：

Choi, KK ^{[1
]}

Lin, CH ^{[1
]}

Leung, KM ^{[1
]}

Tamir, T ^{[1
]}

机构：

[1] USA, Res Lab, Electroopt & Photon Div, Adelphi, MD 20783 USA

来源：

MATERIALS FOR INFRARED DETECTORS II | 2002年 / 4795卷

关键词：

spectrometer; quantum well; quantum grid;

D O I：

10.1117/12.453827

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Quantum well infrared photodetectors (QWIP) are flexible in tailoring their characteristics to suit an application. In this article, we present a design and optimization concept to construct an infrared spectrometer. It utilizes the broadband absorption of a QWIP and the narrow band light coupling of a grid structure. The QWIP material defines the range of detection wavelengths of the spectrometer while the grid geometry selects out different wavelengths to detect in different detector elements. We will present specific design examples in two wavelength ranges, one from 7.5 to 12 mum and another from 6 to 15 mum. We will also present some experimental results to support the design feasibility.

引用

页码：27 / 38

页数：12

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