"Isospin transport in photoexcited 3D Dirac semimetal studied by polarization-resolved terahertz spectroscopy" Yuta Murotani, Natsuki Kanda, Tomohiro Fujimoto, Takuya Matsuda, Manik Goyal, Jun Yoshinobu, Yohei Kobayashi, Takashi Oka, Susanne Stemmer, and Ryusuke Matsunaga, International School and Symposium on Nanodevices and quanTum Technologies (ISNTT2024), 4Fr-14, Kanagawa, Japan, December 6th, 2024.
"High-density electron-hole BCS-like dressed state in bulk GaAs" Yuta Murotani, Changsu Kim, Hidefumi Akiyama, Loren N. Pfeiffer, Ken W. West, and Ryo Shimano, Fundamental Optical Processes in Semiconductors 2019 (FOPS2019), Poster 2-22, Banff, Canada, August 8th, 2019.
"Effects of nonmagnetic impurity scattering on nonlinear terahertz response by Higgs and Leggett modes" Yuta Murotani and Ryo Shimano, Spectroscopies of Novel Superconductors 2019 (SNS2019), P-Th-31, Tokyo, Japan, June 20th, 2019.
"Nonmonotonic thermalization of optically excited dense excitons in bulk GaAs" Yuta Murotani, Fumiya Sekiguchi, Toshimitsu Mochizuki, Changsu Kim, Hidefumi Akiyama, Loren N. Pfeiffer, Ken. W. West, and Ryo Shimano,
Cooperation in Physics Workshop: LMU-UT, P9, Tokyo, Japan, March 1st, 2016.
「THz電場によるイオン化を用いた励起子モット転移ダイナミクスの観測」
室谷悠太、高山正行、金昌秀、秋山英文、L. N. Pfeiffer、K. W. West、島野亮、 第8回低温センター研究交流会、講演番号P-11、東京大学、2017年2月23日。
「光ポンプ―テラヘルツポンプ―光プローブ分光による励起子モット転移ダイナミクスの観測」
室谷悠太、高山正行、関口文哉、松永隆佑、金昌秀、秋山英文、Loren N. Pfeiffer、Ken W. West、島野亮、 日本物理学会2016年秋季大会、講演番号16aAC-5、金沢大学、2016年9月16日。
「光ポンプ・光プローブ分光によるバルクGaAsの励起子共鳴励起におけるモット転移の観測」
室谷悠太、関口文哉、望月敏光、金昌秀、秋山英文、Loren N. Pfeiffer、Ken W. West、島野亮、 日本物理学会第71回年次大会、講演番号21pPSA-42、東北学院大学、2016年3月21日。
"Gapless detection of broadband terahertz pulses based on nonlinear optical phenomena in reflection geometry"
Shunsuke Tanaka, Risako Kameyama, Yuta Murotani, Shunsuke A. Sato, Tomohiro Fujimoto, Takuya Matsuda, Natsuki Kanda, Ryusuke Matsunaga, and Jun Yoshinobu, The 10th International Symposium on Surface Science (ISSS-10), 2P30, Fukuoka, Japan, October 21st, 2024.
"Generation and characterization of polarization shaped pulses in multi-terahertz frequency"
Natsuki Kanda, Kotaro Ogawa, Mayuri Nakagawa, Yuta Murotani, and Ryusuke Matsunaga, The 23rd International Conference on Ultrafast Phenomena (UP2024), We-PO.18, Barcelona, Spain, July 17th, 2024.
"Programmable generation of multi-terahertz counterrotating bicircular light pulses"
Kotaro Ogawa, Natsuki Kanda, Yuta Murotani, and Ryusuke Matsunaga, The 23rd International Conference on Ultrafast Phenomena, We-PO.6, Barcelona, Spain, July 17th, 2024.
"Terahertz two-dimensional frequency-domain analysis for light-induced anomalous Hall effect in GaAs"
Tomohiro Fujimoto, Yuta Murotani, Takayuki Kurihara, Tomohiro Tamaya, Natsuki Kanda, Changsu Kim, Jun Yoshinobu, Hidefumi Akiyama, Takeo Kato, and Ryusuke Matsunaga, The 23rd International Conference on Ultrafast Phenomena, Tu-PO.18, Barcelona, Spain, July 16th, 2024.
"Ultra-broadband, multiplex vibrational sum-frequency generation spectroscopy"
Risako Kameyama, Shunsuke Tanaka, Yuta Murotani, Takuya Matsuda, Natsuki Kanda, Ryusuke Matsunaga, and Jun Yoshinobu, 2023年日本表面真空学会学術講演会、講演番号2P19、名古屋国際会議場、2023年11月1日。
"Gapless detection of broadband terahertz pulses using second-harmonic generation from a metal surface in air"
Shunsuke Tanaka, Yuta Murotani, Shunsuke A. Sato, Tomohiro Fujimoto, Takuya Matsuda, Natsuki Kanda, Ryusuke Matsunaga, and Jun Yoshinobu, 2023年日本表面真空学会学術講演会、講演番号2Bp07、名古屋国際会議場、2023年11月1日。
"Observation of Terahertz Spin Hall Conductivity Spectrum in Bulk GaAs at Room Temperature"
Tomohiro Fujimoto, Takayuki Kurihara, Yuta Murotani, Natsuki Kanda, Tomohiro Tamaya, Changsu Kim, Hidefumi Akiyama, Takeo Kato, and Ryusuke Matsunaga, 48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz2023), Montreal, Canada, September 18th, 2023. Upgraded to Keynote
"Ultrafast terahertz spectroscopy and Floquet engineering in a 3D Dirac semimetal Cd3As2"
Natsuki Kanda, Yuta Murotani, and Ryusuke Matsunaga, Future Materials 2022, Online, Oct. 7th, 2022. Invited
"Ultrafast terahertz spectroscopy for Floquet engineering of 3D Dirac semimetal Cd3As2"
Ryusuke Matsunaga, Natsuki Kanda, and Yuta Murotani, The 15th Asia Pacific Physics Conference (APPC15), Online, Aug. 22th, 2022. Invited
"Ultrafast dynamics of a photoexcited and periodically-driven Dirac semimetal Cd3As2 studied by multiterahertz time-domain spectroscopy"
Natsuki Kanda, Yuta Murotani, Tatsuhiko N. Ikeda, Takuya Matsuda, Manik Goyal, Jun Yoshinobu, Yohei Kobayashi, Susanne Stemmer, and Ryusuke Matsunaga, CLEO 2022, Online, May 16th, 2022.
"Surface electron dynamics on clean and chemisorbed Pt(111) surfaces studied by terahertz-field-induced second harmonic light"
Shunsuke Tanaka, Tomohiro Fujimoto, Yuta Murotani, Takuya Matsuda, Natsuki Kanda, Ryusuke Matsunaga, and Jun Yoshinobu, The 9th International Symposium on Surface Science (ISSS-9), 30PS-68, Online, Nov. 30th, 2021.
"Infrared activation of Higgs mode in superconducting NbN by supercurrent injection"
S. Nakamura, Y. Iida, Y. Murotani, R. Matsunaga, H. Terai, and R. Shimano, Spectroscopies of Novel Superconductors 2019, P-Th-22, Tokyo, Japan, June 20th, 2019.