太赫兹宽谱聚合物波导及其传感应用
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北京理工大学光电学院,清华大学 电子工程系,首都师范大学 太赫兹光电子学教育部重点实验室,首都师范大学 太赫兹光电子学教育部重点实验室,清华大学 电子工程系,首都师范大学 太赫兹光电子学教育部重点实验室 北京理工大学客座博导

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Broadband spectroscopy of polymer waveguide and its sensing applications in the THz region
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Beijing Institute of Techonology, Beijing, China,Tsinghua National Laboratory for Information Science and Technology,State Key Laboratory on Integrated Optoelectronics,Department of Electronic Engineering,Tsinghua University,Beijing Key Laboratory for Terahertz Spectroscopy and Imaging,Key Laboratory of Terahertz Optoelectronics,Ministry of Education,Department of Physics,Capital Normal University,Beijing, China,Beijing Key Laboratory for Terahertz Spectroscopy and Imaging,Key Laboratory of Terahertz Optoelectronics,Ministry of Education,Department of Physics,Capital Normal University,Beijing, China,Tsinghua National Laboratory for Information Science and Technology,State Key Laboratory on Integrated Optoelectronics,Department of Electronic Engineering,Tsinghua University,Beijing Key Laboratory for Terahertz Spectroscopy and Imaging,Key Laboratory of Terahertz Optoelectronics,Ministry of Education,Department of Physics,Capital Normal University,Beijing, China

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    摘要:

    利用太赫兹时域光谱系统对三种反谐振波导的太赫兹谱进行了研究, 这三种波导分别是PMMA管型波导, PMMA自支撑结构波导和SiO2管型波导.该研究验证了三种波导的太赫兹传输基于反谐振理论, 并在实验上实现了PMMA自支撑结构波导超过2 THz的宽光谱传输.同时, 对基于反谐振原理的太赫兹物质传感进行了理论和实验分析, 为物质探测提供了一种可行的手段.

    Abstract:

    A broadband spectroscopy of anti-resonant waveguides in the terahertz region was investigated. The broadband spectral transmission properties of a poly(methylmethacrylate) (PMMA) pipe waveguide, a PMMA self-supporting waveguide, and a SiO2 pipe waveguide were studied using terahertz time domain spectroscopy (THz-TDS). The existence of the anti-resonance phenomenon was demonstrated. Additionally, the PMMA self-supporting waveguide has been experimentally shown to realize transmission bandwidth of over 2 THz without dip frequencies. Also, based on the anti-resonance mechanism, the dielectric pipe waveguide was successfully used as a terahertz refractive index sensor for liquid sensing, which offers a possible method for materials detection.

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刘婧,肖鸣飞,沈京玲,张波,张巍,张存林.太赫兹宽谱聚合物波导及其传感应用[J].红外与毫米波学报,2016,35(5):525~529]. LIU Jing, XIAO Ming-Fei, SHEN Jing-Ling, ZHANG Bo, ZHANG Wei, ZHANG Cun-Lin. Broadband spectroscopy of polymer waveguide and its sensing applications in the THz region[J]. J. Infrared Millim. Waves,2016,35(5):525~529.]

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  • 收稿日期:2016-01-07
  • 最后修改日期:2016-04-19
  • 录用日期:2016-04-19
  • 在线发布日期: 2016-10-05
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