Terahertz imaging using quantum cascade lasers-a review of systems and applications

被引：139

作者：

Dean, P. ^{[1
]}

Valavanis, A. ^{[1
]}

Keeley, J. ^{[1
]}

Bertling, K. ^{[2
]}

Lim, Y. L. ^{[2
]}

Alhathlool, R. ^{[1
]}

Burnett, A. D. ^{[1
]}

Li, L. H. ^{[1
]}

Khanna, S. P. ^{[1
]}

Indjin, D. ^{[1
]}

Taimre, T. ^{[3
]}

Rakic, A. D. ^{[2
]}

Linfield, E. H. ^{[1
]}

Davies, A. G. ^{[1
]}

机构：

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

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

[3] Univ Queensland, Sch Math & Phys, St Lucia, Qld 4072, Australia

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2014年 / 47卷 / 37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;

关键词：

imaging; quantum cascade lasers; terahertz; LOCAL OSCILLATOR; HIGH-TEMPERATURE; PHASE-LOCKING; THZ; FREQUENCY; SPECTROSCOPY; EXPLOSIVES; EMISSION; INTERFEROMETRY; IDENTIFICATION;

D O I：

10.1088/0022-3727/47/37/374008

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The terahertz (THz) frequency quantum cascade laser (QCL) is a compact source of THz radiation offering high power, high spectral purity and moderate tunability. As such, these sources are particularly suited to the application of THz frequency imaging across a range of disciplines, and have motivated significant research interest in this area over the past decade. In this paper we review the technological approaches to THz QCL-based imaging and the key advancements within this field. We discuss in detail a number of imaging approaches targeted to application areas including multiple-frequency transmission and diffuse reflection imaging for the spectral mapping of targets; as well as coherent approaches based on the self-mixing phenomenon in THz QCLs for long-range imaging, three-dimensional imaging, materials analysis, and high-resolution inverse synthetic aperture radar imaging.

引用

页数：22