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Trial Manufacturing of An InGaAs 2-D Detector Array for Astronomical Observations

Research Project

Project/Area Number 09354002
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section展開研究
Research Field Astronomy
Research InstitutionNagoya University

Principal Investigator

NAGATA Tetsuya  Nagoya University, Department of Physics, Assoc.Professor, 大学院・理学研究科, 助教授 (80208016)

Co-Investigator(Kenkyū-buntansha) TANAKA Akimasa  Hamamatsu Photonics, KK., Solid State Div., Section Manager, 固体事業部, グループ長代理(研究
SATO Shuji  Nagoya University, Department of Physics, Professor, 大学院・理学研究科, 教授 (50025483)
Project Period (FY) 1997 – 1998
Project Status Completed (Fiscal Year 1998)
Budget Amount *help
¥29,500,000 (Direct Cost: ¥29,500,000)
Fiscal Year 1998: ¥13,500,000 (Direct Cost: ¥13,500,000)
Fiscal Year 1997: ¥16,000,000 (Direct Cost: ¥16,000,000)
Keywordsphotovoltaic detector / integrating amplifier / dark current
Research Abstract

InGaAs photovoltaic detectors have been developed and evaluated. Comparison of InGaAs with other detectors has been made. We have completed the evaluation of one dimensional arrays in laboratories and at a telescope, and have not proceeded to development of a two dimensional array. [Dark current and quantum efficiency] The temperature dependence of dark current of single and 16-ch array InGaAs detectors was measured from a room temperature to 200K and 95K, respectively. The dark current shows sufficient decrease at 95K, but the quantum efficiency of the detector for long wavelength radiation decreases there ; its cutoff wavelength decreases from 1.7 mum (room temperature) to 1.55 mum (95K) . [Evaluation at telescope] An 128-ch InGaAs array was on the Nagoya University 50-cm telescope with optical fibers and a grating to make a spectrometer with spectral resolution of lambda/DELTAlambdaSOOO.We obtained spectra of bright stars at 1.3 mum, which show the Pa beta absorption and telluric absorptions. [Comparison with other detectors] An electronics system which can drive two dimensional arrays has been developed ; its speed and noise characteristics are sufficient for detector arrays of astronomical use. In comparison with other arrays, we conclude that InGaAs has merits such as low dark current and high operation temperature, but that the decrease of its efficiency at 1.55 mum poses a difficulty in astronomical applications.

Report

(3 results)
  • 1998 Annual Research Report   Final Research Report Summary
  • 1997 Annual Research Report
  • Research Products

    (18 results)

All Other

All Publications (18 results)

  • [Publications] Kobayashi,N.: "Near-Infrared Spectropolarimetry of T Tauri" Astrophys.J.481. 936-942 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Goto,M.: "1-4 micrometer Spectroscopy of Very Red Stars Found in an I-Band Objective Prism Survey" PASJ.49. 485-492 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Yao,Y.: "Near-Infrared Polarimetric Study of Monoceros R2 IRS" Astrophys.J.490. 281-290 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Yao,Y.: "Near Infrared Polarimetric Study of S140 IRS" Astrophys.J.500. 320-328 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Ishii,M.: "A Survey of Dust Features in the 3 Micron Spectra of YSO Candidates" Astron.J.116. 868-880 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Chen,Y.: "Near-Infrared Imaging of the Star-forming Region AFGL5157" Astron.J.117. 446-455 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Kobayashi, N.: "Near-Infrared Spectropolarimetry of T Tauri" Astrophys.J.481. 936-942 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Goto, M.: "1-4 micrometer Spectroscopy of Very Red Stars Found in an I-Band Objective Prism Survey" PASJ.49. 485-492 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Yao, Y.: "Near-Infrared Polarimetric Study of Monoceros R2 IRS" Astrophys.J.490. 281-290 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Yao, Y.: "Near Infrared Polarimetric Study of S140 IRS" Astrophys.J.500. 320-328 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Ishii, M.: "A Survey of Dust Features in the 3 Micron Spectra of YSO Candidates" Astron.J.116. 868-880 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Chen, Y.: "Near-Infrared Imaging of the Star-forming Region AFGL 5157" Astron.J.117. 446-455 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Yao,Y.: "Near Infrared Polarimetric Study of S140 IRS" Astrophys.J.500. 320-328 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Ishii,M.: "A Survey of Dust Features in the 3 Micron Spectra of YSO Candidates" Astron.J.116. 868-880 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Chen,Y.: "Near-Infrared Imaging of the Star-forming Region AFGL 5157" Astron.J.117. 446-455 (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] Kobayashi,N.: "Near-Infrared Spectropolarimetry of T Tauri" Astrophys.J.481. 936-942 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Goto,M.: "1-4 micrometer Spectroscopy of Very Red Stars Found in an I-Band Objective Prism Survery" PASJ.49. 485-492 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Yao,Y.: "Near-Infrared Polarimetric Study of Monoceros R2 IRS" Astrophys.J.490. 281-290 (1997)

    • Related Report
      1997 Annual Research Report

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Published: 1997-04-01   Modified: 2016-04-21  

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