Subwavelength B-shaped metallic hole array terahertz filter with InSb bar as thermally tunable structure

被引：47

作者：

Li, Wei ^{[1
]}

Kuang, Dengfeng ^{[1
]}

Fan, Fei ^{[1
]}

Chang, Shengjiang ^{[1
]}

Lin, Lie ^{[1
]}

机构：

[1] Nankai Univ, Inst Modern Opt, Key Lab Opt Informat Sci & Technol, Minist Educ, Tianjin 300071, Peoples R China

来源：

APPLIED OPTICS | 2012年 / 51卷 / 29期

基金：

国家高技术研究发展计划(863计划); 国家教育部博士点专项基金资助;

关键词：

OPTICAL-TRANSMISSION; PHOTONIC CRYSTALS; METAMATERIALS; SPECTROSCOPY; APERTURES; RADIATION; THZ;

D O I：

10.1364/AO.51.007098

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose a subwavelength B-shaped metallic hole array filter with an embedded thermally tunable InSb semiconductor bar in the terahertz regime. The resonance frequency of this filter can be actively tuned by controlling the temperature of InSb. The transmissions of the filter are calculated with the finite-difference time domain method at various temperatures. Narrowband THz wave with the full width at half maximum of 235 GHz can be selected in the frequency range from 0.74 to 2.02 THz at temperatures from 160 to 350 K. (C) 2012 Optical Society of America

引用

页码：7098 / 7102

页数：5

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