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Chinese Journal of Lasers, Volume. 45, Issue 8, 814002(2018)

Research of Terahertz Detector Based on Resonant Tunneling Diode Enhanced by Bowtie Antenna

Li Jinlun1,2, Cui Shaohui1, Zhang Zhenwei3, Ni Haiqiao2,4, and Niu Zhichuan2,4
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
  • 3[in Chinese]
  • 4[in Chinese]
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    AbstractGet PDF(in Chinese)
    Figures&Tables (12)
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    Figures & Tables(12)
    Schematic of bowtie antenna

    Fig. 1. Schematic of bowtie antenna

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    Impedance matching chart of bowtie antenna

    Fig. 2. Impedance matching chart of bowtie antenna

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    VSWR of bowtie antenna

    Fig. 3. VSWR of bowtie antenna

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    Radiation pattern of bowtie antenna

    Fig. 4. Radiation pattern of bowtie antenna

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    Buffer layer structure of detector

    Fig. 5. Buffer layer structure of detector

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    Schematic of detector structure

    Fig. 6. Schematic of detector structure

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    Optical microscope photo of THz detector

    Fig. 7. Optical microscope photo of THz detector

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    Schematic of test device of THz detector

    Fig. 8. Schematic of test device of THz detector

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    Test results of detector at room temperature

    Fig. 9. Test results of detector at room temperature

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    Signal and noise of the detector with modulation frequency of 1.407 kHz

    Fig. 10. Signal and noise of the detector with modulation frequency of 1.407 kHz

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    Polarization characteristics of detector responsibility

    Fig. 11. Polarization characteristics of detector responsibility

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    • Table 1. Sample structure of RTD

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      Table 1. Sample structure of RTD

      LayerThickness /nmDoping /cm-3
      In0.53Ga0.47As cap1002×1018
      In0.53Ga0.47As spacer2undoped
      AlAs barrier1.1undoped
      In0.53Ga0.47As potential well4.5undoped
      AlAs barrier1.1undoped
      In0.53Ga0.47As spacer2undoped
      In0.53Ga0.47As emitter1002×1018
      In0.53Ga0.47As buffer5002×1018
      InP semi insulating substrate
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    Li Jinlun, Cui Shaohui, Zhang Zhenwei, Ni Haiqiao, Niu Zhichuan. Research of Terahertz Detector Based on Resonant Tunneling Diode Enhanced by Bowtie Antenna[J]. Chinese Journal of Lasers, 2018, 45(8): 814002

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    Paper Information

    Category: terahertz technology

    Received: Mar. 8, 2018

    Accepted: --

    Published Online: Aug. 11, 2018

    The Author Email:

    DOI:10.3788/CJL201845.0814002

    Topics

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