研究成果

 下線を付したメンバーが発表者です。

[2021]

  • (Poster) M. Okano, Y. Wang, J. H., T. Shimizu, G. Isoyama, M. Nakajima, S. Watanabe,
    "Intense-Terahertz-Wave-Induced Crystallization in Poly(lactic) acid by Terahertz Free-Electron Laser,"
    46th Int. Conf. on Infrared, Millimeter, and THz Waves (IRMMW-THz 2021), Virtual coneference, Aug. 29-Sept. 3, 2021.
  • (Oral) K. Mizuta, M. Okano, T. Morimoto, S. Ata, S. Watanabe,
    "Deformation-Induced Structural Changes Of Carbon Black Fillers In Rubbers Investigated By Terahertz Polarization Spectroscopy,"
    46th Int. Conf. on Infrared, Millimeter, and THz Waves (IRMMW-THz 2021), Virtual coneference, Aug. 29-Sept. 3, 2021.
  • (Oral) K. A. Sumihara, Sho Okubo, Makoto Okano, Hajime Inaba, and Shinichi Watanabe,
    "Ultra-Precise Complex Refractive Index Measurement Using Dual-Comb Spectroscopyy,"
    CLEO:2021 (SM1G.7), Virtual coneference, May. 10, 2021.
  • (Oral) J. H., N. Kurokawa, M. Okano, A. Hotta, and S. Watanabe,
    "Evaluation The Hydrogen Bonding in Stereocomplex Poly(lactic acid) by Terahertz Spectroscopy,"
    APS March Meeting 2021(R03.00013), Virtual coneference, Mar. 18, 2021.

[2020]

  • (Oral) M. Okano, T. Takahashi, and S. Watanabe,
    "Coherent control of higher-order spin precession modes in ferromagnetic permalloy thin films by double pulse excitation,"
    CLEO 2020(FM4D.6), All virtual conference (May 10-15, 2020).
  • (Oral) K. Oguchi, T. Kurihara, P. Sulzer, A. Leitenstorfer, and S. Watanabe,
    "Polarization measurements of mid infrared waves by rotating electro-optic crystal method with tilted GaSe at phase-matching angles,"
    High-brightness Sources and Light-driven Interactions Congress(MW6C.2), the Prague Congress Centre, Prague, Czech Republic (March 23-25, 2020).
    (Conference was cancelled because of the coronavirus.)
  • (Poster) R. Tabuchi, K.A. Sumihara, S. Okubo, M. Okano, H. Inaba, and S. Watanabe,
    "Dual comb spectroscopy for measuring the group velocity dispersion of optical fiber realized by fast locking of the beat note with a piezoelectric module,"
    APS March Meeting 2020 (C71.00155), Denver, Colorado, USA (March 2-6, 2020).
    (Conference was cancelled because of the coronavirus.)

[2019]

[2018]

[2017]

  • (Oral) H. Shibata, M. Okano, and S. Watanabe,
    "Control of spin precession motion in ferromagnetic thin films by double-pump experiments,"
    62nd Annual Conference on Magnetism and Magnetic Materials, Pittsburgh, PA, USA, (Nov. 6-10, 2017).
  • (Oral) M. Okano, M. Fujii, and S. Watanabe,
    "Large optical anisotropy in deformed rubber composites with conductive fillers revealed by terahertz polarization spectroscopy,"
    JSAP-OSA Joint Symposia, The 78th JSAP Autumn Meeting 2017 (7p-A409-5), Fukuoka, Japan, (Sep. 5-8, 2017).
  • (Poster) K. Suzuki, K. Oguchi, M. Okano, and S. Watanabe,
    "Development of terahertz electric-field vector imaging system using a rotating polarizer,"
    JSAP-OSA Joint Symposia, The 78th JSAP Autumn Meeting 2017 (6a-PA3-18), Fukuoka, Japan, (Sep. 5-8, 2017).
  • (Poster) E. Bayati, K. Oguchi, S. Watanabe, D. P. Winebrenner, and M. H. Arbab,
    "Terahertz time-domain polarimetry (THz-TDP) for measuring chirality,"
    42th Int. Conf. on Infrared, Millimeter, and THz Waves (Cancun, Mexico) (Aug. 27-Sep. 1, 2017).
  • (Poster) M. Okano and S. Watanabe,
    "Assessment of large internal optical anisotropy in fluoroelastomer with carbon black fillers using a polarization sensitive terahertz spectroscopy,"
    Optical Terahertz Science and Technology (OTST 2017), London, UK, (Apr. 2-7, 2017).
  • (Poster) K. Oguchi, M. Okano, and S. Watanabe,
    "Retrieval of elliptically-polarized terahertz electric-field pulse shapes by electro-optic sampling,"
    Optical Terahertz Science and Technology (OTST 2017), London, UK, (Apr. 2-7, 2017).

[2016]

  • (Oral) K. Sumihara, S. Okubo, M. Okano, H. Inaba, and S. Watanabe,
    "Development of Precise Polarization Measurement System Using Dual-comb Spectroscopy,"
    2016 Light, Energy and the Environment Congress, Fourier Transform Spectroscopy (FTS), Leipzig, Germany, (Nov. 14-17, 2016).
  • (Oral) S. Nakayama, M. Okano, Y. Nozaki, and S. Watanabe,
    "Magneto-Optic Kerr Effect CCD Imaging with Polarization Modulation Technique,"
    61st Annual Conference on Magnetism and Magnetic Materials, New Orleans, Louisiana, USA, (Oct. 31-Nov. 4, 2016).
  • (Poster) H. Iwasaki, M. Okano, N. Komatsubara, A. Moriwaki, H. Sato, and S. Watanabe,
    "Birefringent properties of poly-lactic acid at terahertz range,"
    41st International Conference on Infrared, Millimeter and Terahertz Waves, Copenhagen, Denmark, M5P.12.18 (Sep. 25-30, 2016).

[2015]

  • (Invited) Shinichi Watanabe,
    "Developments of terahertz electric-field vector measurement systems and its applications,"
    Energy, Materials and Nanotechnology (EMN) Hong Kong Meeting (Dec. 9-12, 2015).
  • (Oral) Mayuko Takai, and Shinichi Watanabe,
    "Temporal Evolution of Spatial Terahertz Electric-field Vector Images,"
    CLEO/Europe-EQEC 2015, CC-5.3 (June 22, 2015).
  • (Poster) A. Kasatani, N. Yasumatsu, K. Oguchi, and S. Watanabe,
    "Real time monitoring of terahertz E-field vector waveform,"
    CLEO/Europe-EQEC 2015, CC-P.12 (June 21, 2015).

[2014]

  • (Oral) K. Oguchi, N. Yasumatsu, and S. Watanabe,
    " Time-domain picture of the terahertz vector waveform measured by the electro-optic sampling method using the crystal symmetry,"
    39th Int. Conf. on Infrared, Millimeter, and THz Waves (Tucson, Arizona, USA), T3/C-13.13 (Sep. 16, 2014).

[2013]

  • (Oral) M. Takeda, T. Tachizaki, N. Yasumatsu, and S. Watanabe,
    "Terahertz electric-field vector camera,"
    CLEO:2013 (San Jose, USA), CW1K.1 (June 12, 2013).
  • (Oral) K. Oguchi, N. Yasumatsu, M. Takeda, T. Tachizaki, and S. Watanabe
    , "An oscillator based real-time terahertz time-domain polarization measurement system with a spinning electro-optic crystal,"
    International Workshop on Terahertz Science and Technology 2013 (OTST2013) W3C-4 (Kyoto, Japan), (April 1-5, 2013).

[2012]

  • (Poster) Naoya Yasumatsu and Shinichi Watanabe
    , "Precise polarization measurements of terahertz electromagnetic waves with a spinning electro-optic crystal: theory, experiments, and applications,"
    International Symposium on Frontiers in THz Technology (FTT 2012) (Nara, Japan), (November 27-29, 2012).
  • (Oral) Naoya Yasumatsu and Shinichi Watanabe
    , "Terahertz profilometer by time-domain polarimetry,"
    CLEO:2012 (San Jose, USA), CTu3B.7 (May 8, 2012).