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    Chapter and Conference Paper

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

    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 gener...

    K. G. Nakamura, H. Koguchi, J. Hu… in Multiphoton Processes and Attosecond Physi… (2012)

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    Chapter and Conference Paper

    Development of Noninvasive Thrombus Detection System with Near-Infrared Laser and Photomultiplier for Artificial Hearts

    As for artificial hearts generally used in short term, thrombus formation is still a serious issue. To realize effective medical treatment for patients with the artificial heart without increase of anticoagula...

    S. Tsujimura, H. Koguchi, T. Yamane… in 13th International Conference on Biomedica… (2009)

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    Chapter and Conference Paper

    Three-Dimensional Thermal Stress Analysis Considering the Stress Singularity for Bonded Structures

    It is well known that stress singularity occurs at a vertex in joints under mechanical loadings and thermal loadings. In the present paper, a singular stress field at a vertex in three-dimensional bonded struc...

    H. Koguchi in Fracture of Nano and Engineering Materials and Structures (2006)