Transmission properties of terahertz pulses through subwavelength double split-ring resonators

被引：145

作者：

Azad, AK ^{[1
]}

Dai, JM ^{[1
]}

Zhang, WL ^{[1
]}

机构：

[1] Oklahoma State Univ, Sch Elect & Comp Engn, Stillwater, OK 74078 USA

来源：

OPTICS LETTERS | 2006年 / 31卷 / 05期

关键词：

D O I：

10.1364/OL.31.000634

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a terahertz time-domain spectroscopy study of the transmission properties of planar composite media made from subwavelength double split-ring resonators (SRRs). The measured amplitude transmission spectra reveal a resonance near 0.5 THz, the central frequency of most ultrafast terahertz systems, for one SRR orientation in normal-incidence geometry. This resonance is attributed to the effect of electric excitation of magnetic resonance of the SRR arrays. In addition, the influences of background substrate, lattice constant, and the shapes of the SRRs on the terahertz resonance are experimentally investigated and agree well with the results of recent numerical studies. (c) 2006 Optical Society of America.

引用

页码：634 / 636

页数：3

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