研究業績


出版論文 (Google Scholar)

  1. Natsuki Kanda, Tomohiro Imahoko, Koji Yoshida, Akihiro Tanabashi, A. Amani Eilanlou, Yasuo Nabekawa, Tetsumi Sumiyoshi, Makoto Kuwata-Gonokami, and Katsumi Midorikawa,
    "Opening a new route to multiport coherent XUV sources via intracavity high-order harmonic generation",
    Light: Science & Applications 9, 168 (2020).

  2. Natsuki Kanda, Nobuhisa Ishii, Jiro Itatani, and Ryusuke Matsunaga,
    "Time-domain spectroscopy of optical parametric amplification for phase-stable terahertz-to-midinfrared pulses",
    arXiv:2005.03538 [physics.optics]

  3. Bing Cheng*, Natsuki Kanda*, Tatsuhiko N. Ikeda, Takuya Matsuda, Peiyu Xia, Timo Schumann, Susanne Stemmer, Jiro Itatani, N. P. Armitage, and Ryusuke Matsunaga,
    "Efficient Terahertz Harmonic Generation with Coherent Acceleration of Electrons in the Dirac Semimetal Cd3As2",
    Physical Review Letters 124, 117402 (2020).
    arXiv:1908.07164 [cond-mat.mtrl-sci].
    *: equal contribution

  4. Takuya Matsuda, Natsuki Kanda, Tomoya Higo, N. P. Armitage, Satoru Nakatsuji, and Ryusuke Matsunaga,
    "Room-Temperature Terahertz Anomalous Hall Effect in Weyl Antiferromagnet Mn3Sn Thin Films",
    Nature Communications 11, 909 (2020).
    arXiv:1912.12668 [cond-mat.mtrl-sci].

  5. Hiroaki Niwa, Naotaka Yoshikawa, Kaito Tomari, Ryusuke Matsunaga, Dongjoon Song, Hiroshi Eisaki, Ryo Shimano,
    "Light-induced nonequilibrium response of the superconducting cuprate La2−xSrxCuO4",
    Physical Review B 100, 104507 (2019). Editors' Suggestion.
    arXiv:1904.07449 [cond-mat.supr-con].

  6. Sachiko Nakamura, Yudai Iida, Yuta Murotani, Ryusuke Matsunaga, Hirotaka Terai, and Ryo Shimano,
    "Infrared activation of Higgs mode by supercurrent injection in a superconductor NbN",
    Physical Review Letters 122, 257001 (2019).
    arXiv:1809.10335 [cond-mat.supr-con].

  7. Kota Katsumi, Naoto Tsuji, Yuki I. Hamada, Ryusuke Matsunaga, John Schneeloch, Ruidan D. Zhong, Genda D. Gu, Hideo Aoki, Yann Gallais, and Ryo Shimano,
    "Higgs Mode in the d-Wave Superconductor Bi2Sr2CaCu2O8+x Driven by an Intense Terahertz Pulse",
    Physical Review Letters 120, 117001 (2018). Editors' Suggestion.
    arXiv:1711.0493 [cond-mat.supr-con].

  8. Go Yumoto, Ryusuke Matsunaga, Hiroki Hibino, and Ryo Shimano,
    "Ultrafast Terahertz Nonlinear Optics of Landau Level Transitions in a Monolayer Graphene",
    Physical Review Letters 120, 104701 (2018).

  9. Ryusuke Matsunaga, Naoto Tsuji, Kazumasa Makise, Hirotaka Terai, Hideo Aoki, and Ryo Shimano,
    "Polarization-resolved terahertz third-harmonic generation in a superconductor NbN: dominance of Higgs mode beyond the BCS approximation",
    Physical Review B 96, 020505(R) (2017).
    arXiv:1703.02815 [cond-mat.supr-con].

  10. Ryusuke Matsunaga and Ryo Shimano,
    "Nonlinear terahertz spectroscopy of Higgs mode in s-wave superconductors",
    Physica Scripta 92, 024003 (2017).

  11. Ryusuke Matsunaga and Ryo Shimano,
    "Higgs mode excitation in superconductors by intense terahertz pulse",
    Proceedings of SPIE 9835, Ultrafast Bandgap Photonics, 98351G (2016).

  12. Ryusuke Matsunaga and Ryo Shimano,
    "Higgs amplitude mode in s-wave superconductors revealed by terahertz pump-terahertz probe spectroscopy",
    Proceedings of SPIE 9361, Ultrafast Phenomena and Nanophotonics XIX, 93611D (2015).

  13. Ryusuke Matsunaga, Naoto Tsuji, Hiroyuki Fujita, Arata Sugioka, Kazumasa Makise, Yoshinori Uzawa, Hirotaka Terai, Zhen Wang, Hideo Aoki, and Ryo Shimano,
    "Light-induced collective pseudospin precession resonating with Higgs mode in a superconductor",
    Science 345, 1145 (2014).
    Highlighted in Perspective: "Particle physics in a superconductor", Science 345, 1121 (2014).

  14. Ryusuke Matsunaga, Yuki I. Hamada, Kazumasa Makise, Yoshinori Uzawa, Hirotaka Terai, Zhen Wang, and Ryo Shimano,
    "Higgs Amplitude Mode in the BCS Superconductors Nb1-xTixN induced by Terahertz Pulse Excitation",
    Physical Review Letters 111, 057002 (2013).
    arXiv:1305.0381 [cond-mat.supr-con].

  15. Ryo Shimano, Go Yumoto, Je-Yoon Yoo, Ryusuke Matsunaga, Shinichi Tanabe, Hiroki Hibino, Takahiro Morimoto, and Hideo Aoki,
    "Quantum Faraday and Kerr rotations in graphene",
    Nature Communications 4, 1841 (2013).

  16. Ryusuke Matsunaga and Ryo Shimano,
    "Nonequilibrium BCS State Dynamics Induced by Intense Terahertz Pulses in a Superconducting NbN Film",
    Physical Review Letters 109, 187002 (2012).

  17. Ryo Shimano, Shinichi Watanabe, and Ryusuke Matsunaga,
    "Intense terahertz pulse-induced nonlinear responses in carbon nanotubes",
    Journal of Infrared, Millimeter and Terahertz Waves 33, 861 (2012).

  18. Makoto Okano, Ryusuke Matsunaga, Kazunari Matsuda, Satoshi Masubuchi, Tomoki Machida, and Yoshihiko Kanemitsu,
    "Raman study on the interlayer interactions and the band structure of bilayer graphene synthesized by alcohol chemical vapor deposition",
    Applied Physics Letters 99, 151916 (2011).
    Free pdf file on KURENAI

  19. Ryusuke Matsunaga, Kazunari Matsuda, and Yoshihiko Kanemitsu,
    "Observation of Charged Excitons in Hole-Doped Carbon Nanotubes Using Photoluminescence and Absorption Spectroscopy",
    Physical Review Letters 106, 037404 (2011) Editors' Suggestion.
    Selected for a Viewpoint in Physics 4, 5 (2011).
    Free pdf file on KURENAI

  20. Ryusuke Matsunaga, Kazunari Matsuda, and Yoshihiko Kanemitsu,
    "Origin of low-energy photoluminescence peaks in single carbon nanotubes: K-momentum dark excitons and triplet dark excitons",
    Physical Review B 81, 033401 (2010).
    Selected for the January 18, 2010 issue of Virtual Journal of Nanoscale Science & Technology, vol. 21, issue 3 (2010).
    Free pdf file on KURENAI

  21. Ryusuke Matsunaga, Kazunari Matsuda, and Yoshihiko Kanemitsu,
    "Direct Observation of Dark Exciton States in Single Carbon Nanotubes",
    Journal of Luminescence 129, 1702 (2009).

  22. Ryusuke Matsunaga, Yuhei Miyauchi, Kazunari Matsuda, and Yoshihiko Kanemitsu,
    "Symmetry-induced nonequilibrium distributions of bright and dark exciton states in single carbon nanotubes",
    Physical Review B 80, 115436 (2009).
    Selected for the October 12, 2009 issue of Virtual Journal of Nanoscale Science & Technology, vol. 20, issue 15 (2009).
    Free pdf file on KURENAI

  23. Kohei Yoshikawa, Ryusuke Matsunaga, Kazunari Matsuda, and Yoshihiko Kanemitsu,
    "Mechanism of exciton dephasing in a single carbon nanotube studied by photoluminescence spectroscopy",
    Applied Physics Letters 94, 093109 (2009).
    Selected for the March 16, 2009 issue of Virtual Journal of Nanoscale Science & Technology, vol. 19, issue 11 (2009).
    Free pdf file on KURENAI

  24. Ryusuke Matsunaga, Kazunari Matsuda, and Yoshihiko Kanemitsu,
    "Evidence for Dark Excitons in a Single Carbon Nanotube due to the Aharonov-Bohm Effect",
    Physical Review Letters 101, 147404 (2008).
    Selected for the October 20, 2008 issue of Virtual Journal of Nanoscale Science & Technology, vol. 18, issue 16 (2008).
    Free pdf file on KURENAI

本・解説

  1. 松永隆佑、辻直人、青木秀夫、島野亮、“超伝導体中のヒッグスモード‐高強度テラヘルツ波による検出とヒッグス共鳴第三高調波発生”、
    固体物理 50, 411 (2015).
  2. 松永隆佑、島野亮、“テラヘルツパルスを用いたs波超伝導体のヒッグスモードの観測”、
    日本物理学会誌 69, 453 (2014).
  3. 松永隆佑、“半導体カーボンナノチューブの励起子光物性”、
    機能材料2011年5月号、シーエムシー出版

学会・シンポジウム講演(2017年7月以降)

2020

2019

2018

2017

競争的資金(松永代表のみ)

受賞・表彰