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Dynamics of Coherent Optical Phonons in PbTiO3 Excited by Impulsive Stimulated Raman Scattering

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Multiphoton Processes and Attosecond Physics

Part of the book series: Springer Proceedings in Physics ((SPPHY,volume 125))

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Abstract

Dynamics of coherent phonons in a ferroelectric film of PbTiO3 is investigated using femtosecond time-resolved transient reflection measurements with a pump and probe technique. Coherent optical phonons are generated by irradiation of a femtosecond laser pulse via impulsive stimulated Raman scattering. Four coherent oscillations with frequencies of 3.2, 4.7, 6.2 and 8.6 THz are observed and assigned to optical phonons of A1(1TO), A1(1LO), E(2TO), and \({\mathrm{B}}_{1} + \mathrm{E}\) modes, respectively. A positive frequency chirp is observed in the soft mode (A1(1TO)) within 2 ps, and explained by relaxation of vibrational states and anharmonicity of the potential curve in the soft mode coordinate.

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Author information

Authors and Affiliations

  1. Materials and Structure Laboratory, Tokyo Institute of Technology, 4259 Nagtasuta, Yokohama, 226-8503, Japan

    K. G. Nakamura, H. Koguchi, J. Hu & H. Takahashi

  2. Department of Innovative Engineered Materials, Tokyo Institute of Technology, 4259 Nagtasuta, Yokohama, 226-8503, Japan

    K. G. Nakamura, H. Koguchi, J. Hu, H. Takahashi, M. Nakajima, S. Utsugi & H. Funakubo

  3. CREST, Japan Science and Technology Agency, Kawaguchi, 332-0012, Japan

    K. G. Nakamura & J. Hu

Authors
  1. K. G. Nakamura
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  2. H. Koguchi
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  3. J. Hu
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  4. H. Takahashi
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  5. M. Nakajima
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  6. S. Utsugi
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  7. H. Funakubo
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Corresponding author

Correspondence to K. G. Nakamura .

Editor information

Editors and Affiliations

  1. Department of Chemistry, The University of Tokyo, Hongo 7-3-1, Tokyo, 113-0033, Japan

    Kaoru Yamanouchi

  2. , Extreme Photonics Research Group, RIKEN, Hirosawa, Wako-shi 2-1, Saitama, 351-0198, Japan

    Midorikawa Katsumi

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© 2012 Springer-Verlag Berlin Heidelberg

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Nakamura, K.G. et al. (2012). Dynamics of Coherent Optical Phonons in PbTiO3 Excited by Impulsive Stimulated Raman Scattering. In: Yamanouchi, K., Katsumi, M. (eds) Multiphoton Processes and Attosecond Physics. Springer Proceedings in Physics, vol 125. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-28948-4_61

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  • DOI: https://doi.org/10.1007/978-3-642-28948-4_61

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-28947-7

  • Online ISBN: 978-3-642-28948-4

  • eBook Packages: Physics and AstronomyPhysics and Astronomy (R0)

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