Optical control of terahertz nested split-ring resonators

Cai Yuan; Xiao-Lei Zhao; Xiao-Long CaoShi-Lin XuNan-Nan LuanJian-Quan Yao

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Optical control of terahertz nested split-ring resonators

机译：Optical control of terahertz nested split-ring resonators

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摘要

Two kinds of optical modulation processes are designed based on nested split-ring resonators in the terahertz regime. By photo-conductivity induced mode switching effect, the resonant structure and resonant mode will be changed, and the two contrary tunable resonant properties are obtained. Without illumination, the two designs both have three resonant peaks. As the intensity of illumination increases, for the first design, the first and the third resonant peaks disappear and a broadband resonant peak at the second resonant frequency is formed eventually; however, the second design realizes an exactly opposite modulation process. Moreover, in order to identify the modulation mechanism, we discuss and analyze the distributions of the electric fields and surface currents in detail. Our designs can be implemented in tunable terahertz functional devices and provide important reference value for the design of terahertz metamaterial.

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来源
《Optical Engineering》 |2013年第8期|087111-1-087111-5|共5页
作者
Cai Yuan; Xiao-Lei Zhao; Xiao-Long CaoShi-Lin XuNan-Nan LuanJian-Quan Yao;
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作者单位

Tianjin University, Institute of Laser and Opto-electronics, College of Precision Instrument and Opto-electronics Engineering, Key Laboratory of Optoelectronic Information Science and Technology, Tianjin 300072, China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类计量学;
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Optical control of terahertz nested split-ring resonators

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