Optically switchable and tunable terahertz metamaterials through photoconductivity

被引：52

作者：

Kafesaki, M. ^{[1
,2
]}

Shen, N. H. ^{[3
,4
]}

Tzortzakis, S. ^{[1
,2
]}

Soukoulis, C. M. ^{[1
,3
,4
]}

机构：

[1] Fdn Res & Technol Hellas FORTH, Inst Elect Struct & Laser, Iraklion 71110, Crete, Greece

[2] Univ Crete, Dept Mat Sci & Technol, Iraklion 71003, Crete, Greece

[3] Iowa State Univ, Ames Lab, USDOE, Ames, IA 50011 USA

[4] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA

来源：

JOURNAL OF OPTICS | 2012年 / 14卷 / 11期

关键词：

metamaterials; switchable systems; tunable systems; SRRs; SPLIT-RING RESONATORS; INDEX; REFRACTION;

D O I：

10.1088/2040-8978/14/11/114008

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present both theoretical and experimental cases for realizing optically switchable and tunable split-ring resonator (SRR) metamaterials operating in the THz regime. This is achieved by suitably placing photoconducting semiconductors in the various SRR designs. Exciting the semiconductor by an optical pump beam, the realization of single- and multi-band switching, blue-shift and red-shift tunability, and broad-band phase modulation are demonstrated.

引用

页数：8

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