Stimulated resonance Raman scattering from single crystals of a thiophene/phenylene co-oligomer

• Hisao Yanagi

  Faculty of Engineering, Kobe University, Rokkodai, Nada-ku, Kobe 657-8501, Japan

• Atsutoshi Yoshiki

  Faculty of Engineering, Kobe University, Rokkodai, Nada-ku, Kobe 657-8501, Japan

• Shu Hotta

  Institute of Research and Innovation, Kashiwa Laboratory, Photonics and Materials Research Department, 1201 Takada, Kashiwa, Chiba 277-0861, Japan

• Shunsuke Kobayashi

  Photonics Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan

抄録

We have investigated the stimulated resonance Raman scattering from single crystals of a thiophene/phenylene co-oligomer. The very narrow lines [full width at half maximum (FWHM)=11–20 cm−1] are observed in the same spectral regions where the spectrally narrowed emissions (FWHM≈300 cm−1) occur upon excitation with intense laser pulse. We related these modes to the stimulated resonance Raman scattering. Two lines of Raman shifts of 1466 and 1605 cm−1 are of molecular origin. Another line with an energy shift of ∼1260 cm−1 from excitation energy, on the other hand, implies the presence of the coherence of crystal origin. The associated split lines accompanying this mode are thought to constitute the longitudinal modes in the Fabry–Pérot cavity naturally formed in the crystals.

収録刊行物

• Applied Physics Letters

  Applied Physics Letters 83 (10), 1941-1943, 2003-09-08

  AIP Publishing

キーワード

• Physics and Astronomy (miscellaneous)

詳細情報

• CRID: 1360011145593740288
• NII論文ID: 80016147534
• DOI: 10.1063/1.1605233
• ISSN: 10773118
• ISSN: 00036951
• Web Site: https://pubs.aip.org/aip/apl/article-pdf/83/10/1941/18581371/1941_1_online.pdf
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