Terahertz imaging through self-mixing in a quantum cascade laser

被引：142

作者：

Dean, Paul ^{[1
]}

Lim, Yah Leng ^{[2
]}

Valavanis, Alex ^{[1
]}

Kliese, Russell ^{[2
]}

Nikolic, Milan ^{[2
]}

Khanna, Suraj P. ^{[1
]}

Lachab, Mohammad ^{[1
]}

Indjin, Dragan ^{[1
]}

Ikonic, Zoran ^{[1
]}

Harrison, Paul ^{[1
]}

Rakic, Aleksandar D. ^{[2
]}

Linfield, Edmund H. ^{[1
]}

Davies, A. Giles ^{[1
]}

机构：

[1] Univ Leeds, Sch Elect & Elect Engn, Leeds LS2 9JT, W Yorkshire, England

[2] Univ Queensland, Sch Informat Technol & Elect Engn, Brisbane, Qld 4072, Australia

来源：

OPTICS LETTERS | 2011年 / 36卷 / 13期

基金：

澳大利亚研究理事会; 英国工程与自然科学研究理事会; 欧洲研究理事会;

关键词：

ARRAY;

D O I：

10.1364/OL.36.002587

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate terahertz (THz) frequency imaging using a single quantum cascade laser (QCL) device for both generation and sensing of THz radiation. Detection is achieved by utilizing the effect of self-mixing in the THz QCL, and, specifically, by monitoring perturbations to the voltage across the QCL, induced by light reflected from an external object back into the laser cavity. Self-mixing imaging offers high sensitivity, a potentially fast response, and a simple, compact optical design, and we show that it can be used to obtain high-resolution reflection images of exemplar structures. (C) 2011 Optical Society of America

引用

页码：2587 / 2589

页数：3

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