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Research Activities

Invited talks

  1. J. Takeda, K. Yoshioka, Y. Minami, Y. Arashida, and I. Katayama (Keynote Talk), “THz-Field-Driven Electron Tunneling On The Nanoscale,” 43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2018), (9-14 September 2018, Nagoya, Japan).
  2. 小坂英男, 「光と固体中の電子スピンが織り成す新奇量子現象」(招待講演), 日本物理学会2018年秋季大会, 同志社大学 京田辺キャンパス, 2018年9月9日.
  3. I. Katayama, Y. Minami, Y. Arashida, O. S. Handegard, T. Nagao, M. Kitajima, and J. Takeda (Invited Talk), “Nonlinear Terahertz Dynamics of Dirac Electrons in Bi Thin Films”, SPIE Optics + Photonics 2018 (19-23 August 2018, San Diego, USA).
  4. H. Kosaka, “Geometric spin qubits in an NV center in diamond for quantum repeaters” (Invited Talk), Qtech2018(China-Japan international workshop on quantum technologies), University of Science and Technology of China, 2018年8月23日.
  5. H. Kosaka, “Holonomic Quantum Control of Geometric Spin Qubits in Diamond” (Invited Talk), The 19th International Symposium on the Physics of Semiconductors and Applications(ISPSA2018), 韓国, 2018年7月1日.
  6. H. Kosaka, “Holonomic Quantum Gates and Quantum Teleportation into Solid” (Invited Talk) , 1st Advances in Quantum Engineering International Meeting, シンガポール, 2018年6月.
  7. J. Takeda, K. Yoshioka, Y. Arashida, and I. Katayama (Invited Talk), “Nanoscale Electron Manipulation Using Phase-controlled THz Near-fields”, The Conference on Lasers and Electro-Optics (CLEO 2018), (13-18 May 2018, San Jose, USA).
  8. H. Kosaka, “Holonomic quantum control of hybrid spin qubits in an NV center in diamond” (Invited Talk), C3QS 2018, 沖縄科学技術大学院大学, 2018年4月16日.
  9. H. Kosaka, "Holonomic quantum manipulation of diamond qubits" (Invited Talk), The 2nd CEMS International Symposium on Dynamics in Artificial Quantum Systems(DAQS2018), 東大先端研 ENEOSホール, 2018年1月15日.
  10. H. Mashiko, K. Oguri, Y. Chisuga, H. Masuda, T. Yamaguchi, A. Suda, I. Katayama, J. Takeda, and H. Gotoh (Invited Talk), "Petahertz Optical Drive with Wide-Bandgap Materials", IEEE Photonics Conference (IPC2017), (1-5 October 2017, Florida).
  11. H. Kosaka, “Quantum teleportation-based deterministic repeater” (Invited Talk), 「日英Quantum Communication Workshop Series III」, 駐日英 国大使館, 2016年10月13日.
  12. J. Takeda, Y. Minami and I. Katayama (Invited Talk), "Broadband Single-Shot Spectroscopy Applicable to Photoinduced Nonlinear Dynamics", Korea-Japan Joint Symposium on Semiconductor Physics and Nanophotonics (22 April, 2015, Daejeon, Korea)
  13. H. Kosaka, “Quantum Repeater Approach based on Diamond Spin Qubit”(Invited Talk), Lasers and Electro-Optics (CLEO)/Quantum Electronics and Laser Science Conference (QELS), San Jose, USA, 2014年6月8日.
  14. I. Katayama, W. Oba, Y. Minami, T. Saiki, and J. Takeda (Invited Talk in Japanese), "Ultrafast Dynamics of Phase-Change Materials Observed Using Echelon-Based Single-Shot Setups", The 26th Symposium on Phase Change Oriented Science (PCOS2014), (4-5 December 2014, Hamana-ko, Japan).
  15. J. Takeda, M. Yamaki and I. Katayama (in Japanese), "Real-time imaging and coherent control of phonon-polariton propagations in ferroelectric materials", The 34th annual meetings of The Laser Society of Japan, (Jan. 20-22, Kita-kyushu, Japan)
  16. J. Takeda, I. Katayama, K. Shudo and M. Kitajima (Invited Talk), "Coherent Phonon and Surface-Enhanced Raman Scattering Dynamics in Solids", 18th International Conference on Dynamical Processes in Excited States of Solids, II-1 (August 4-9, 2013, Fuzhou, China).
  17. I. Katayama, K. Shudo, J. Takeda, and M. Kitajima (Invited Talk), "Nanoscale and Femtosecond Phonon Dynamics Observed with Surface Enhanced Raman Scattering", Ultrafast Surface Dynamics 2013, (May 28-31 2013, Colorado).
  18. M. Suemitsu, M.-H. Jung, H. Fukidome, I. Katayama, M. Kitajima, J. Takeda (Invited Talk), "THz Coherent Phonons in Graphene on Silicon", The 2nd International Symposium on Terahertz Nanoscience (TeraNano 2012), (Okinawa, Japan, July 4&5, 2012).
  19. J. Takeda, H. Sakaibara and I. Katayama, "Real-Time Mapping of the Phonon-Polariton Dispersion in Ferroelectric LiNbO3 Using Femtosecond Single-Shot Imaging Spectroscopy", 5th International Conference on Science and Technology for Advanced Ceramics, 22pHsI02 (Yokohama, Japan, June 22-24, 2011).
  20. I. Katayama, H. Shimosato, M. Bito, K. Furusawa, M. Adachi, H. Zen, M. Shimada, N. Yamamoto, M. Hosaka, S. Kimura, M. Kato, and M. Ashida, "Coherent Synchrotron Terahertz Radiation using Laser Bunch Slicing", 35th International Conference on Infrared, Millimeter, and Terahertz Waves, (Rome, Sep. 7, 2010, Tu-F1).
  21. I. Katayama, H. Aoki, J. Takeda, H. Shimosato, M. Ashida, R. Kinjo, I. Kawayama, M. Tonouchi, M. Nagai and K. Tanaka, "Nonlinear THz Spectroscopy on the Dielectric Thin Films", The Conference on Lasers and Electro-Optics (CLEO/QELS2010), (San Jose, USA, May 16-21, 2010).
  22. J. Takeda, A. Ishida, and I. Katayama, "Real-Time Time-Frequency Two-Dimensional Imaging of Ultrafast Excited-State Dynamics in Light-Harvesting Nano- and Biomaterials", International Conference on Nanomaterials: Synthesis Characterization and Applications (ICN2010), (India, April 27-29, 2010).

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