"All air-plasma" terahertz spectroscopy

被引：39

作者：

Clough, Benjamin ^{[1
]}

Liu, Jingle ^{[1
]}

Zhang, X. -C. ^{[1
]}

机构：

[1] Rensselaer Polytech Inst, Ctr Terahertz Res, Troy, NY 12180 USA

来源：

OPTICS LETTERS | 2011年 / 36卷 / 13期

基金：

美国国家科学基金会;

关键词：

PULSES; THZ; EXPLOSIVES; EMISSION;

D O I：

10.1364/OL.36.002399

中图分类号：

O43 [光学];

学科分类号：

070207 [光学];

摘要：

We demonstrate terahertz wave generation and detection capabilities up to 6 THz without the need for solid state materials, biased electrodes, or forward propagating signal collection. An "all air-plasma" terahertz system is used to encode explosive material resonant signatures into the 357nm nitrogen fluorescence line of a bichromatic field-induced laser plasma filament. These results show the practicability to extend these measurements to remote locations where terahertz pulse information is no longer limited by water vapor absorption, phonon resonance, or signal collection directionality. (C) 2011 Optical Society of America

引用

页码：2399 / 2401

页数：3

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