Spoof surface plasmons resonance effect and tunable electric response of improved metamaterial in the terahertz regime

We propose an improved design and numerical study of an optimized tunable plasmonics artificial material resonator in the terahertz regime. We demonstrate that tunability can be realized with a transmission intensity as much as - 61% in the lower frequency resonance, which is implemented through the...

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Bibliographic Details
Published inChinese physics B Vol. 24; no. 12; pp. 483 - 487
Main Author 王玥 张丽颖 梅金硕 张文超 童一静
Format Journal Article
LanguageEnglish
Published 01.12.2015
Subjects
Design improvements
Design optimization
Dielectrics
Metamaterials
Photoexcitation
Plasmonics
Plasmons
Switching
人工材料
光导开关
反应
可调谐
太赫兹
数值模拟
表面等离子体共振效应
调电
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Summary:We propose an improved design and numerical study of an optimized tunable plasmonics artificial material resonator in the terahertz regime. We demonstrate that tunability can be realized with a transmission intensity as much as - 61% in the lower frequency resonance, which is implemented through the effect of photoconductive switching under photoexcitation.In the higher frequency resonance, we show that spoof surface plasmons along the interface of metal/dielectric provide new types of electromagnetic resonances. Our approach opens up possibilities for the interface of metamaterial and plasmonics to be applied to optically tunable THz switching.
Bibliography:We propose an improved design and numerical study of an optimized tunable plasmonics artificial material resonator in the terahertz regime. We demonstrate that tunability can be realized with a transmission intensity as much as - 61% in the lower frequency resonance, which is implemented through the effect of photoconductive switching under photoexcitation.In the higher frequency resonance, we show that spoof surface plasmons along the interface of metal/dielectric provide new types of electromagnetic resonances. Our approach opens up possibilities for the interface of metamaterial and plasmonics to be applied to optically tunable THz switching.
11-5639/O4
surface plasmons,metamaterials,terahertz,resonance
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/24/12/127302