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• (Oral) D. Nishikawa, K. Maezawa, S. Fujii, M. Okano, S. Watanabe,
  "Ultrafast time-resolved spectroscopy of spin precession by an asynchronous optical sampling based on a dual-comb system,"
  IEEE Intermag 2023, SOA-09(May 16), Sendai International Center, Sendai, Japan, May 15-19, 2023.
  
• (Oral) K. Maezawa, S. Fujii, K. Yamanoi, Y. Nozaki, S. Watanabe,
  "Optical Profiling of Surface-Acoustic-Wave Absorption due to Elastically Driven Ferromagnetic Resonance in Nickel,"
  IEEE Intermag 2023, YOB-02(May 16), Sendai International Center, Sendai, Japan, May 15-19, 2023.
  
• (Poster) M. Takanawa, S. Fujii, and S. Watanabe,
  "Finite element calculation of surface acoustic waves propagating in piezoelectric lithium niobate substrates for quantitative amplitude estimation,"
  The 12th Advanced Lasers and Photon Sources Conference (ALPS2023), ALPSp1-22(Apr. 20), PACIFICO Yokohama, Yokohama, Japan, April 18-21, 2023.
  
• (Oral) R. Shibata, K. Maezawa, S. Fujii, and S. Watanabe,
  "Development of sub-Gigahertz Laser Vibrometer using Ultrashort Pulsed Laser with Frequency Synchronization,"
  The 12th Advanced Lasers and Photon Sources Conference (ALPS2023), ALPS20-02(Apr. 20), PACIFICO Yokohama, Yokohama, Japan, April 18-21, 2023.
  

• (Oral) A. Iwasaki, D. Nishikawa, S. Tateno, M. Okano, K. Yamanoi, Y. Nozaki, and S. Watanabe,
  "Quantitative Measurement of Absolute Displacement of Surface Acoustic Wave with ~26 pm Axial Resolution,"
  CLEO:2022, San Jose McEnery Convention Center, San Jose, California, USA, May. 15-20, 2022.
  

• (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.
  

• (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.)

• (Poster) K.A. Sumihara, S. Okubo, K. Oguchi, H. Inaba, and S. Watanabe,
  "Development of polarization-sensitive dual-comb spectroscopy for anisotropic materials,"
  2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (ED-P.16), Munich, Germany (June 23-27, 2019).

• (Poster) M. Nakamura, M. Okano, and S. Watanabe,
  "Real-Time Observation of Thermally-Induced Structural Changes of Poly(Lactic Acid) Thin Film by Terahertz Spectroscopy,"
  2018 MRS Fall Meeting, Boston, USA (Nov. 25-30, 2018).
• (Oral) K. Oguchi, T. Kurihara, M. Fischer, S. Watanabe, D. Brida,
  "Measurement of elliptically-polarized E-field waveforms in mid infrared range by electro-optic sampling,"
  JSAP-OSA Joint Symposia, The 79th JSAP Autumn Meeting 2018 (18p-221B-12), Nagoya, Japan, (Sep. 18-21, 2018).
• (Oral) T. Tsujimoto, A. Moriwaki, M. Fujii, M. Okano, and S. Watanabe,
  "Optical Response Change Of Black Rubbers Under Cyclic Deformation Investigated By Terahertz Polarization Spectroscopy,"
  43th Int. Conf. on Infrared, Millimeter, and THz Waves, Nagoya, Japan (Sep. 9-14, 2018).
• (Oral) A. Moriwaki, M. Okano, and S. Watanabe,
  "Internal strain imaging of visibly-opaque black rubbers by terahertz polarization spectroscopy,"
  The 13th Pacific Rim Conference on Lasers and Electro-Optics (CLEO PR) 2018, Hong Kong, China (July 29-Aug. 3, 2018).
• (Poster) K. Suzuki, K. Oguchi, M. Okano, and S. Watanabe,
  "Electric-field vector imaging of terhertz surface waves on an indium tin oxide thin film,"
  The 13th Pacific Rim Conference on Lasers and Electro-Optics (CLEO PR) 2018, Hong Kong, China (July 29-Aug. 3, 2018).
• (Oral) M. Okano and S. Watanabe,
  "Observation of strain-induced anisotropic percolative conduction in rubber-filler composites by terahertz polarization spectroscopy,"
  The 12th International Conference on Excitonic and Photonic Processes in Condensed Matter and Nano Materials (EXCON 2018), Nara, Japan (July 8-13, 2018).
• (Invited) S. Watanabe,
  "Terahertz optical response of polymer composites and its application,"
  The 11th Asia-Pacific Laser Symposium, Xi'an, China (May 28-31, 2018).
• (IAAM Scientist Medal Lecture) S. Watanabe,
  "Terahertz polarization spectroscopy as a novel tool for non-destructive internal strain sensing of rubber and polymeric materials,"
  International Conference on Plastics and Rubber Technology (ICPRT 2018), Stockholm, Sweden (May 14-18, 2018).

• (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).

• (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).

• (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).

• (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).

• (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).

• (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).

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