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Optical Heterodyne Spectroscopy of Light Scattering by Laser Induced Phonons

Research Project

Project/Area Number 63460062
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field 物理計測・光学
Research InstitutionInstitute of Industrial Science, Univ. of Tokyo

Principal Investigator

TAKAGI Kenshiro  Inst.of Industrial Science Univ. of Tokyo, Professor, 生産技術研究所, 教授 (90013218)

Co-Investigator(Kenkyū-buntansha) CHOI P.-K.  Dept.of Phys. Meiji Univ. Assistant, 理工学部, 助手 (30143530)
SAKAI Keiji  Inst.of Industrial Science Univ. of Tokyo, Assistant, 生産技術研究所, 助手 (00215584)
TANAKA Hajime  Inst.of Industrial Science Univ. of Tokyo Lecturer, 生産技術研究所, 講師 (60159019)
Project Period (FY) 1988 – 1989
Project Status Completed (Fiscal Year 1989)
Budget Amount *help
¥7,400,000 (Direct Cost: ¥7,400,000)
Fiscal Year 1989: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 1988: ¥6,400,000 (Direct Cost: ¥6,400,000)
KeywordsBrillouin Scattering / Optical Beating Spectroscopy / Ultrasonic Spectroscopy / Ripplon / 光ヘテロダイン分光
Research Abstract

The fundamental requirement in the ultrasonic spectroscopy is to observe the velocity and absorption over extensive frequency range. In the last few years, we have developed various experimental techniques, including planoconcave ultrasonic resonator and high resolution Bragg reflection (to be referred as HRB) method. The purpose of this research project is to establish a new technique which is useful for the measurement of phonon velocity and decay at hypersonic range. For this purpose, we took advantage of the light beating spectroscopy to detect the light scattering by the thermal phonons. The success of the HRB method has shown that the light beating is most effective to observe the very weak light of Brillouin scattering. In the investigation by this Grantin-Aid,we obtained various important results which are summarized as follows.
(a) We established the means to measure the phonon velocity and absorption in transparent solids at the frequency range up to 2GHz. The Gruneisen constant which represents the strength of phonon-phonon interaction, was estimated for sapphire from the results of hypersonic measurement. High frequency ultrasonic property was measured in GeO_2 glass. An absorption peak due to the structural relaxation was found around 600 MHz, which yields the distribution of the double well potential of oxygen atom in glass.
(b) A new optical beating technique was developed to observe Brillouin scattering by thermal fluctuation of liquid surface.The range of the measurement was extended up to 1MHz, which is one decade higher than the previous works. This technique will be a powerful means to investigate the dynamic property of liquid surface.
(c) We constracted several optical heterodyne systems to detect incoherent Brillouin scattering light by thermal phonons and obtained the characteristics and performance of each system through the preliminary test with them.

Report

(3 results)
  • 1989 Annual Research Report   Final Research Report Summary
  • 1988 Annual Research Report
  • Research Products

    (25 results)

All Other

All Publications (25 results)

  • [Publications] P.-K.Choi and K.Takagi: "Ultrasonic spectroscopy in bovine serum albumin solutions" J.Acoust.Soc.Am.(in press).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] P.-K.Choi H.Koizumi. K.Takagi and T.Suzuki: "Anomalies of Ultrasonic Velocity in High-Tc Ceranics YBa_2Cu_3Oy and BiSrCaCu_2Oy" Solid.State.Commun.70. 1175-1178 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] K.Sakai.P.-K.Choi and K.Takagi: "High Frequency Ultrasonic Relaxation in GeO_2 Glass" J.Non-cryst.Solids. 109. 47-53 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Jong-Rim Bae,Pak-Kon Choi,and Kenshiro Takagi: "Ultrasonic relaxation study in methylcyclohexane and methyl acetate by plano-concave resonator method." J.Acoust.Soc.Jpn.(E). 9. 241-245 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Pak-Kon Choi and Kenshiro Takagi: "Ultrasonic vibrational relaxation in liquid diiodomethane." J.Acoust.Soc.Jpn.(E). 9. 191-194 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 高木堅志郎,崔博坤: "超音波でみた卵白のゲル化" 高分子. 37. 413 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 高木堅志郎: "超音波と物性研究" 電子情報通信学会誌. 72. 123-126 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 高木堅志郎: "超音波によるマテリアル・キャラクタライゼ-ション" 日本音響学会誌. 45. 293-293 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 高木堅志郎: "超音波スペクトロスコピ-" 応用物理. 58. 352-365 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] P.-K.Choi and K.Takagi: "Ultrasonic spectroscopy in bovine serum albumin solutions" J.Acoust. Soc.Am. in press.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] P.-K.Choi. H.Koizumi, K.Takagi and T.Suzuki: "Anomalies of Ultrasonic Velocity in High-Tc Ceranics YBa_2Cu_3Oy and BiSrCaCu_2Oy" Solid.State.Commun. 70-12 (p.p.1175-1178)1989.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] K.Sakai, P.-K.Choi and K.Takagi: "High Frequency Ultrasonic Relaxation in GeO_2 Glass" J.Non-cryst. Solids 109 (p.p.47-53)1989.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] J.-R.Bae, P.-K.Choi and K.Takagi: "Ultrasonic Relaxation Study in Methylcyclohexane and Methyl Acetate by Plano-concave Resonator Method" J.Acout.Soc.Jpn. (E) 9 (p.p.241-245)1988.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Pak-Kon Choi and K.Takagi: "Ultrasonic Vibrational Relaxation in liquid Diiodemethane." J.Acoust.Soc.Jpn. (E) 9(p.p.191-194)1988.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 高木堅志郎: "超音波と物性研究" 電子情報通信学会誌. 72. 123-126 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 高木堅志郎: "超音波によるマテリアル・キャラクタライゼ-ション" 日本音響学会誌. 45. 293-293 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 高木堅志郎: "超音波スペクトロスコピ-" 応用物理. 58. 352-365 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] P.-K.Choi and K.Takagi: "Ultrasonic spectroscopy in bovine serum albumin solutions" J.Acoust.Soc.Am.in press.

    • Related Report
      1989 Annual Research Report
  • [Publications] P.-K.Choi H.Koizumi,K.Takagi and T.Suzuki: "Anomalies of Ultrasonic Velocity in High-Tc Ceranics YBa_2Cu_3Oy and BiSrCaCu_2Oy" Solid.State.Commun.70. 1175-1178 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] K.Sakai.P.-K.Choi and K.Takagi: "High Frequency Ultrasonic Relaxation in GeO_2 Glass" J.Non-cryst. Solids. 109. 47-53 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 高木堅志郎,崔博坤: 高分子. 37. 413 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] 高木堅志郎: 光学. 17. 477-485 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] Jong-Rim Bae;Pak-Kon Choi;Kenshiro Takagi: J.Acoust.Soc.Jpn.(E). 9. 241-245 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] Pak-Kon Choi;Kenshiro Takagi: J.Acoust.Soc.Jpn.(E). 9. 191-194 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] Harue Sakai;Kenshiro Takagi;Akiko Minamisawa: Jpn.J.Appl.Phys.Suppl.27-1. 27. 55-57 (1988)

    • Related Report
      1988 Annual Research Report

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Published: 1988-04-01   Modified: 2016-04-21  

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