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2001 Fiscal Year Final Research Report Summary

Construction of sub-terahertz spectroscopic system using incoherent light source

Research Project

Project/Area Number 11450031
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Applied optics/Quantum optical engineering
Research InstitutionOsaka University

Principal Investigator

HANGYO Masanori  Research Center for Superconductor Photonics, Osaka University, Professor, 超伝導フォトニクス研究センター, 教授 (10144429)

Co-Investigator(Kenkyū-buntansha) TONOUCHI Masayoshi  Research Center for Superconductor Photonics, Osaka University, Professor, 超伝導フォトニクス研究センター, 教授 (40207593)
Project Period (FY) 1999 – 2000
Keywordssub-terahertz wave / incoherent light source / photoconductive switch / laser diode / time domain spectroscopy / cross-correlation / semiconductor characterization / complex refractive index
Research Abstract

The purpose of this study is to construct sub-terahertz spectroscopic system using a compact and cheap incoherent light source and to demonstrate its usefulness. First, we constructed a system composed of a continuous wave multimode laser diode (CWMLD) and a low-temperature-grown GaAs (LT-GaAs) photoconductive switch, which work as an sub-THz emitter, and a Martin-Puplett type interferometer and bolometer. The usefulness of the system was verified by measuring transmittance of doped silicon wafers. Next, we constructed new spectroscopic system consisting of a CWMLD and two photoconductive switches, which are used for an emitter and a detector. By measuring the complex refractive index of doped silicon wafers, it is proved that this cheep and compact system is equivalent with a system using an expensive ultrashort laser.

  • Research Products

    (14 results)

All Other

All Publications (14 results)

  • [Publications] O.Morikawa: "Sub-THz emission properties of photoconductive antennas excited with multimode laser diode"Jpn. J. Appl. Phys.. 38. 1388-1389 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] O.Morikawa: "Snb-THz spectroscopic system using a multimode laser diode and photoconductive antenna"Appl. Phys. Lett.. 75. 3772-3774 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] O.Morikawa: "A cross-correlation spectroscopy in subterahertz region using an incoherent light source"Appl. Phys. Lett.. 76. 1519-1521 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Kiwa: "Optical response in amorphhous GaAs thin films prepared by pulsed laser deposition"Jpn. J. Appl. Phys.. 39. 6304-6308 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] N.Kida: "Low-energy charge dynamics in La_<0.7>Ca_<0.3>MnO_3:THz time-domain spectroscopic studies"Phys. Rev. B. 62. R11965-R11968 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] A.Quema: "Terahertz-time domain spectroscopic measurement of moderately-doped silicon using InAs emitter under magnetic field"Jpn. J. Appl. Phys.. 40. 867-872 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 萩行正憲: "レーザー・テラヘルツ波工学とその応用"高温学会誌. 27. 131-143 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] O. Morikawa et al.: "Sub-THz emission properties of photoconductive antennas excited with multimode laser diode"Jpn. J. Appl. Phys.. 38. 1388-1389 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] O. Morikawa et al.: "Sub-THz spectroscopic system using a multimode laser diode and photoconductive antenna"Appl. Phys.Lett.. 75. 3772-3774 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] O. Morikawa et al.: "A cross-correlation spectroscopy in subterahertz region using an incoherent light source"Appl. Phys.Lett.. 76. 1519-1521 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T. Kiwa et al.: "Optical response in amorphous GaAs thin films prepared by pulsed laser deposition"Jpn. J. Appl. Phys.. 39. 6304-6308 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] N. Kida et al.: "Low-energy charge dynamics in La_<0.7>Ca_<0.3>MnO_3: THz time-domain spectroscopic studies"Phys. Rev.. B62. R11965-R11968 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] A. Quema et al.: "Terahertz-time domain spectroscopic measurement of moderately-doped silicon using InAs emitter under magnetic field"Jpn. J. Appl. Phys.. 40. 867-872 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M. Hangyo: "Laser terahertz wave technology and its applications"J. of High Temp. Soc.. 27. 131-143 (2001)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2003-09-17  

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