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Laser & Optoelectronics Progress, Volume. 57, Issue 15, 152301(2020)

Theoretical Analysis of Evanescent Mode Resonance Frequency in a T-Shaped Cavity of the Terahertz Parallel-Plate Metal Waveguide

Qiong Wu1, Huifang Zhang1、*, Qing Cao1、**, Kai Wang2, Chaoyue Li1, Ying He1, Yan Wang1, and Xuemei Su3
Author Affiliations
  • 1Department of Physics, Shanghai University, Shanghai 200444, China
  • 2Key Laboratory of Infrared Imaging Materials and Detectors, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China
  • 3Key Laboratory of Coherent Light, Atomic and Molecular Spectroscopy, Ministry of Education, College of Physics, Jilin University, Changchun, Jilin 130012, China
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    Figures & Tables(8)
    Schematic diagram of T-cavity terahertz parallel-plate waveguide[10]

    Fig. 1. Schematic diagram of T-cavity terahertz parallel-plate waveguide[10]

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    Simulation results of the EFS method. (a) Power transmittance of TE2 evanescent resonance mode in T-cavity; (b) resonance electric field distribution

    Fig. 2. Simulation results of the EFS method. (a) Power transmittance of TE2 evanescent resonance mode in T-cavity; (b) resonance electric field distribution

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    Relationship between the results of the two methods in the low frequency terahertz region and w. (a) Variation curve of fr with w; (b) variation curve of δ with w

    Fig. 3. Relationship between the results of the two methods in the low frequency terahertz region and w. (a) Variation curve of fr with w; (b) variation curve of δ with w

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    Relationship between the results of the two methods in the low frequency terahertz region and b. (a) Variation curve of fr with b; (b) variation curve of δ with b

    Fig. 4. Relationship between the results of the two methods in the low frequency terahertz region and b. (a) Variation curve of fr with b; (b) variation curve of δ with b

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    Relationship between the results of the two methods in the medium frequency terahertz region and w. (a) Variation curve of fr with w; (b) variation curve of δ with w

    Fig. 5. Relationship between the results of the two methods in the medium frequency terahertz region and w. (a) Variation curve of fr with w; (b) variation curve of δ with w

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    Relationship between the results of the two methods in the medium frequency terahertz region and b. (a) Variation curve of fr with b; (b) variation curve of δ with b

    Fig. 6. Relationship between the results of the two methods in the medium frequency terahertz region and b. (a) Variation curve of fr with b; (b) variation curve of δ with b

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    Relationship between the results of the two methods in the high frequency terahertz region and w. (a) Variation curve of fr with w; (b) variation curve of δ with w

    Fig. 7. Relationship between the results of the two methods in the high frequency terahertz region and w. (a) Variation curve of fr with w; (b) variation curve of δ with w

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    Relationship between the results of the two methods in the high frequency terahertz region and b. (a) Variation curve of fr with b; (b) variation curve of δ with b

    Fig. 8. Relationship between the results of the two methods in the high frequency terahertz region and b. (a) Variation curve of fr with b; (b) variation curve of δ with b

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    Qiong Wu, Huifang Zhang, Qing Cao, Kai Wang, Chaoyue Li, Ying He, Yan Wang, Xuemei Su. Theoretical Analysis of Evanescent Mode Resonance Frequency in a T-Shaped Cavity of the Terahertz Parallel-Plate Metal Waveguide[J]. Laser & Optoelectronics Progress, 2020, 57(15): 152301

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    Paper Information

    Category: Optical Devices

    Received: Oct. 21, 2019

    Accepted: Nov. 26, 2019

    Published Online: Aug. 4, 2020

    The Author Email: Zhang Huifang (hfzhang1967@shu.edu.cn), Cao Qing (qcao@shu.edu.cn)

    DOI:10.3788/LOP57.152301

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology