Metal-wire terahertz time-domain spectroscopy

被引：59

作者：

Walther, M ^{[1
]}

Freeman, MR ^{[1
]}

Hegmann, FA ^{[1
]}

机构：

[1] Univ Alberta, Dept Phys, Edmonton, AB T6G 2J1, Canada

来源：

APPLIED PHYSICS LETTERS | 2005年 / 87卷 / 26期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1063/1.2158025

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Terahertz (THz) pulses propagating on a metal-wire waveguide are used to perform terahertz time-domain spectroscopy of lactose powder dispersed on top of the wire. The THz pulses are generated by a photoconductive switch at one end of the metal wire and are detected at the other end by electro-optic sampling in a ZnTe crystal that can be moved parallel to the axis of the metal wire. A large enhancement in the peak amplitude of the THz signal is observed by contacting the metal wire to one of the electrodes of the photoconductive switch. The propagation characteristics of the THz pulse along the metal wire and near its end are studied. Potential applications of metal-wire terahertz time-domain spectroscopy are discussed. (c) 2005 American Institute of Physics.

引用

页码：1 / 3

页数：3

共 20 条

[1] Azimuthally polarized surface plasmons as effective terahertz waveguides [J].