Time-resolved THz spectroscopy in a parallel plate waveguide

被引：6

作者：

Cooke, David G. ^{[1
]}

Jepsen, Peter Uhd ^{[1
]}

机构：

[1] Tech Univ Denmark, DTU Foton, DK-2800 Lyngby, Denmark

来源：

PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE | 2009年 / 206卷 / 05期

关键词：

TERAHERTZ; PROPAGATION;

D O I：

10.1002/pssa.200881281

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We demonstrate time-resolved terahertz spectroscopy inside a novel parallel plate waveguide where one of the metallic plates is replaced by a transparent conducting oxide. Considerable improvements to the waveguide loss coefficient are shown, with a power absorption coefficient of 4 cm(-1) at 0.5 THz. The time resolution of the technique is shown to be limited by the spatial excitation profile, which for sharply focused beams can approach similar to 1 ps time scales. (C) 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：997 / 1000

页数：4

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