Optics and Precision Engineering, Volume. 31, Issue 4, 442(2023)

Development of a 220 GHz Ti superconducting TES detector array for CMB polarization experiment

Qianghui LUO1...2, Wei MIAO1,*, Feiming LI1,2, Jiaqiang ZHONG1, Zheng WANG1, Jiangqiao DING1,3, Kangmin ZHOU1, Wen ZHANG1, Yuan REN1 and Shengcai SHI1,* |Show fewer author(s)
Author Affiliations
  • 1Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing20023, China
  • 2University of Science and Technology of China, Hefei3006, China
  • 3Nanjing University of Information Science and Technology, Nanjing210044, China
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    Figures & Tables(13)
    (a) 220 GHz 8×8 Ti superconducting TES detector array; (b) Ti superconducting TES detector, consisting of a twin slot antenna, a bandpass filter, and a leg supporting unit with the size of 400 μm×200 μm; (c) Leg supporting unit, including an Au microstrip absorber and a superconducting Ti TES
    Schematic view of the twin slot antenna (a) and simulated S11 of the twin slot antenna (b) and beam Pattern of the twin slot antenna (c)
    Schematic diagram of the 220 GHz bandpass filter as well as its equivalent circuit (a), and simulated S11 and S12 parameters of the bandpass filter (b)
    Simulated coupling efficiency
    Schematic of the Au microstrip line used as an absorber (a) and simulated S11 parameter of the Au microstrip line (b)
    Optical micrograph of the leg supporting Ti superconducting TES detector
    Photograph of the 8×8 Ti superconducting TES detector array inside the dilution cooler
    8×8 superconducting TES detector array (a) and Measured resistance-temperature curves of two superconducting TES detectors (No. 4-4 and 8-3) (b)
    Measured current-voltage curves of the Ti superconducting TES detector (8-3) at different bath temperatures
    Measured DC power of the Ti superconducting TES detector at different bath temperatures
    Measured current noise spectrum of the superconducting TES detector at the bias voltage of 5.3 μV
    • Table 1. Parameters of microstrip line used to connect twin slot antenna and bandpass filter

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      Table 1. Parameters of microstrip line used to connect twin slot antenna and bandpass filter

      Conductor width of microstrip line 1Conductor width of microstrip line 2Thickness of dielectric layerDielectric constant
      368.60.54.0
    • Table 2. Parameters of the 220 GHz bandpass filter

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      Table 2. Parameters of the 220 GHz bandpass filter

      Length

      01/03

      Length

      02

      Width

      01/03

      Width

      02

      Distance
      3343302118192
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    Qianghui LUO, Wei MIAO, Feiming LI, Jiaqiang ZHONG, Zheng WANG, Jiangqiao DING, Kangmin ZHOU, Wen ZHANG, Yuan REN, Shengcai SHI. Development of a 220 GHz Ti superconducting TES detector array for CMB polarization experiment[J]. Optics and Precision Engineering, 2023, 31(4): 442

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    Paper Information

    Category: Modern Applied Optics

    Received: Jun. 17, 2022

    Accepted: --

    Published Online: Mar. 7, 2023

    The Author Email: MIAO Wei (weimiao@pmo.ac.cn), SHI Shengcai (scshi@pmo.ac.cn)

    DOI:10.37188/OPE.20233104.0442

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