Terahertz imaging through self-mixing in a quantum cascade laser

被引：147

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

共 22 条

[1] 2.9 THz quantum cascade lasers operating up to 70 K in continuous wave [J].

Barbieri, S ;

Alton, J ;

Beere, HE ;

Fowler, J ;

Linfield, EH ;

Ritchie, DA .

APPLIED PHYSICS LETTERS, 2004, 85 (10) :1674-1676

[2] Imaging with THz quantum cascade lasers using a Schottky diode mixer [J].

Barbieri, S ;

Alton, J ;

Baker, C ;

Lo, T ;

Beere, HE ;

Ritchie, D .

OPTICS EXPRESS, 2005, 13 (17) :6497-6503

[3]

BOSCH T, 2006, ENCY SENSORS, V10, P1

[4] Absorption-sensitive diffuse reflection imaging of concealed powders using a terahertz quantum cascade laser [J].

Dean, Paul ;

Shaukat, Muhammad U. ;

Khanna, Suraj P. ;

Chakraborty, Subhasish ;

Lachab, Mohammad ;

Burnett, Andrew ;

Davies, Giles ;

Linfield, Edmund H. .

OPTICS EXPRESS, 2008, 16 (09) :5997-6007

[5] Dual-frequency imaging using an electrically tunable terahertz quantum cascade laser [J].

Dean, Paul ;

Saat, Nor Kamila ;

Khanna, Suraj P. ;

Salih, Mohammed ;

Burnett, Andrew ;

Cunningham, John ;

Linfield, Edmund H. ;

Davies, A. Giles .

OPTICS EXPRESS, 2009, 17 (23) :20631-20641

[6] A phase-modulated feedback method for testing optical isolators assembled into the laser diode package [J].

Donati, S ;

Sorel, M .

IEEE PHOTONICS TECHNOLOGY LETTERS, 1996, 8 (03) :405-407

[7]

Donati S., 2004, Electro-Optical Instrumentation: Sensing and Measuring with Lasers

[8]

Donati Silvano., 1999, Photodetectors

[9] Linewidth enhancement factor of terahertz quantum cascade lasers [J].

Green, Richard P. ;

Xu, Ji-Hua ;

Mahler, Lukas ;

Tredicucci, Alessandro ;

Beltram, Fabio ;

Giuliani, Guido ;

Beere, Harvey E. ;

Ritchie, David A. .

APPLIED PHYSICS LETTERS, 2008, 92 (07)

[10] Mechanisms of temperature performance degradation in terahertz quantum-cascade lasers [J].

Indjin, D ;

Harrison, P ;

Kelsall, RW ;

Ikonic, Z .

APPLIED PHYSICS LETTERS, 2003, 82 (09) :1347-1349

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