Surface plasmons in terahertz metamaterials

被引：47

作者：

Acuna, G. ^{[1
,2
]}

Heucke, S. F. ^{[1
,2
]}

Kuchler, F. ^{[1
,2
]}

Chen, H. -T. ^{[3
]}

Taylor, A. J. ^{[3
]}

Kersting, R. ^{[1
,2
]}

机构：

[1] Univ Munich, Photon & Optoelect Grp, D-80799 Munich, Germany

[2] Univ Munich, Ctr NanoSci, D-80799 Munich, Germany

[3] Los Alamos Natl Lab, MPA CINT, Los Alamos, NM 87545 USA

来源：

OPTICS EXPRESS | 2008年 / 16卷 / 23期

关键词：

Metamaterials;

D O I：

10.1364/OE.16.018745

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We characterize terahertz metamaterials by applying apertureless near-field microscopy with a bandwidth that covers the entire spectral response of the structures. The observations agree with the interpretation of the fundamental mode of the metamaterial. But the high frequency resonance shows properties that deviate from the common interpretation. We show that the high frequency response is governed by surface plasmon excitations, which have a comparable oscillator strength as the fundamental mode. (c) 2008 Optical Society of America

引用

页码：18745 / 18751

页数：7

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