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基于激光成丝的太赫兹时域光谱系统研究综述

Review of Terahertz Time-Domain Spectroscopy Systems Based on Laser Filament

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摘要

太赫兹时域光谱(THz-TDS)技术是一种使用相干探测的频谱分析手段。THz-TDS系统集太赫兹波发射器与探测器于一体,通过相干探测,可以同时获取太赫兹脉冲的电场强度和相位信息,广泛用于生物、材料、安检等领域。超快激光成丝产生太赫兹波是当前产生宽频谱、高强度太赫兹辐射的一个重要途径。文章详细介绍了超快激光成丝辐射太赫兹波的主流物理机制以及增强、调控太赫兹波的主要方法,阐述了基于激光成丝的THz-TDS系统的探测原理和探测手段。

Abstract

Terahertz time-domain spectroscopy (THz-TDS) uses coherent detection method for spectrum analysis. The THz-TDS system integrates terahertz emitter and detector, which can simultaneously acquire the field intensity and phase information of terahertz pulses and be widely used in biology, materials, security, and other fields. The THz pulse induced by the ultrafast laser filament is an important way to generate wide-spectrum and high-intensity THz radiation. In this paper, the physical mechanisms of ultrafast laser filament radiated THz waves and the methods of enhancing and regulating THz waves are introduced in detail. The detection principle and methods of the THz-TDS system based on laser filamentation are described.

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中图分类号:O437

DOI:10.3788/CJL201946.0614010

所属栏目:太赫兹技术

基金项目:国家重点研发计划 、国家自然科学基金、111计划、强场激光物理国家重点实验室开放课题;

收稿日期:2019-02-14

修改稿日期:2019-04-28

网络出版日期:2019-06-01

作者单位    点击查看

徐强:南开大学现代光学研究所, 天津 300071
苏强:南开大学现代光学研究所, 天津 300071
鲁丹:南开大学现代光学研究所, 天津 300071
张楠:南开大学现代光学研究所, 天津 300071
张杨:南开大学现代光学研究所, 天津 300071
刘伟伟:南开大学现代光学研究所, 天津 300071

联系人作者:刘伟伟(liuweiwei@nankai.edu.cn)

备注:国家重点研发计划 、国家自然科学基金、111计划、强场激光物理国家重点实验室开放课题;

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引用该论文

Qiang Xu,Qiang Su,Dan Lu,Nan Zhang,Yang Zhang,Weiwei Liu. Review of Terahertz Time-Domain Spectroscopy Systems Based on Laser Filament[J]. Chinese Journal of Lasers, 2019, 46(6): 0614010

徐强,苏强,鲁丹,张楠,张杨,刘伟伟. 基于激光成丝的太赫兹时域光谱系统研究综述[J]. 中国激光, 2019, 46(6): 0614010

被引情况

【1】李贺龙,王思琪,付尧,徐淮良. 空气激光的原理、产生及应用. 中国激光, 2020, 47(5): 500017--1

【2】刘伟伟,薛嘉云,苏强,陈瑞良. 超快激光成丝现象研究综述. 中国激光, 2020, 47(5): 500003--1

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