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1992 Fiscal Year Final Research Report Summary

TWO-PHOTON CORRELATION MEASUREMENTS OF NON-CLASSICAL LIGHT AND ITS APPLICATIONS OF ULTRAFAST SPECTROSCOPY

Research Project

Project/Area Number 03640344
Research Category

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

Allocation TypeSingle-year Grants
Research Field 物理学一般
Research InstitutionTHE UNIVERSITY OF TOKYO

Principal Investigator

KUGA Takahiro  UNIV.OF TOKYO, COLLEGE OF ARTS AND SCIENCES, ASSOCIATE PROFESSOR, 教養学部, 助教授 (60195419)

Co-Investigator(Kenkyū-buntansha) BABA Motoyoshi  UNIV.OF TOKYO, INST.FOR SOLID STATE PHYSICS, RESEARCH ASSOCIATE, 物性研究所, 教務職員 (60159077)
MATSUOKA Masahiro  UNIV.OF TOKYO, INST.FOR SOLID STATE PHYSICS, PROFESSOR, 物性研究所, 教授 (10013476)
Project Period (FY) 1991 – 1992
KeywordsParametric Fluorescence / Squeezed Light / Non-linear Optics / Ultrafast Spectroscopy / Two-Photon Intensity Correlation / Intensity Interference
Research Abstract

We have invcstigated statistical characters of a squeezed pulse train by two-photon coincidenec counting. We have also measured a pulsc duration of a weak picosccond pulscs by using an interferometer and counting technique. The results are listed below.
1. We have performed two-photon coincidence counting measurements of a squeezed pulse train from a parametric amplifier pumped by a continuous-wave mode-locked laser. The intensity correlation function at zcro time dclay can determined by measuring the ratio of two types of the coincidences, the one within the same mode-locked pulse and the one among different pulses. lambda single mode analysis of the intensity correlation function g^<(2)> (O) is made to explain the experimental resuits.
2. We have developed a new two-photon interference scheme for measuring the coherence time and pulse width of ultrafast pulses. Experiments have been performed with the output pulses of a cw mode-locked dye laser, with results in good agreement with the conventional second-harmonic autocorrclation mcasurement.

  • Research Products

    (6 results)

All Other

All Publications (6 results)

  • [Publications] T.Kuga: "Two-Photon Correlation Squeezed Pulse Train" submitted to Optics Communications. (発表予定).

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Y.Miyamoto: "Measurement of Ultrafast Optical Pulses with Two-Photon Interferences" Optics Latters. 18. 900-902 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M.Matsuoka: "wo-Photor Coincidence Counting to Measure Ultrafast Pulse Width and Squeeze Parameter" Laser Spectrocopy X (World Scientific). 393-398 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Kuga, T.Hirano, Y.Miyamoto, and M.Matuoka: "Two-Photon Correlation of Squeezed Pulse Train" Optics Communications. (submitted).

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y.Miyamoto, T.Kuga, M.Baba, and M.Matuoka: "Measurement of Ultrafast Optical Pulses with Two-Photon Interference" Optics Letters. 18. 900-902 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Matuoka, T.Kuga, T.Hirano, Y.Miyamoto, and M.Baba: "Two-Photon Coincidence Counting to Measure Ultrafast Pulse Width and Squeezed Parameter" Laser Spectroscopy X (World Scientific). 393-398 (1992)

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

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Published: 1999-03-16  

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