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J-GLOBAL ID:202101001014796290   Update date: Sep. 19, 2024

Ohta Ryuichi

オオタ リュウイチ | Ohta Ryuichi
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Affiliation and department:
Job title: Associate Proffesor
Research field  (1): Semiconductors, optical and atomic physics
Research keywords  (1): 光圧、オプトメカニクス、励起子、希土類、フォトニック結晶
Research theme for competitive and other funds  (4):
  • 2023 - 2026 高効率量子光メモリの創発へ向けた希土類イオン励起電子と機械振動の結合系の研究
  • 2023 - 2026 On-chip nuclear spin qubit platform based on individual erbium-167 ions in silicon photonic nanocavities for quantum repeaters
  • 2021 - 2024 微小球光キャビティとナノワイヤ振動子による巨視的フォノン量子もつれ状態の生成
  • 2012 - 2013 固体ナノ共振器中の光電子相互作用のNEMS制御と量子情報素子への応用
Papers (28):
  • L. Ruks, X. Xu, R. Ohta, W. J. Munro, V. M. Bastidas. Coherent response of inhomogeneously broadened and spatially localized emitter ensembles in waveguide QED. Physical Review A. 2024. 109. 2
  • Ryuichi Ohta, Grégoire Lelu, Xuejun Xu, Tomohiro Inaba, Kenichi Hitachi, Yoshitaka Taniyasu, Haruki Sanada, Atsushi Ishizawa, Takehiko Tawara, Katsuya Oguri, et al. Observation of Acoustically Induced Dressed States of Rare-Earth Ions. Physical Review Letters. 2024. 132. 3
  • M. Kurosu, D. Hatanaka, R. Ohta, H. Yamaguchi, Y. Taniyasu, H. Okamoto. Impedance-matched high-overtone bulk acoustic resonator. Applied Physics Letters. 2023. 122. 12
  • Ryuichi Ohta, Takuya Hatomura, Masaya Hiraishi, Victor M. Bastidas, Xuejun Xu, Katsuya Oguri, William J. Munro, Hajime Okamoto. Compression of the Inhomogeneous Broadening of Ensemble Rare-Earth Ions Using a Mechanical Resonance. 2022 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR). 2022
  • Ryuichi Ohta, Loic Herpin, Victor M. Bastidas, Takehiko Tawara, Hiroshi Yamaguchi, Hajime Okamoto. Rare-Earth-Mediated Optomechanical System in the Reversed Dissipation Regime. PHYSICAL REVIEW LETTERS. 2021. 126. 4
more...
Patents (13):
Lectures and oral presentations  (6):
  • 微小機械構造を用いた長寿命な発光集合体の制御-励起準位の不均一広がりの圧搾-
    (日本物理学会学術講演会 2023)
  • Observation of the multiple acoustic phonon sidebands in erbium ions
    (Optics and Photonics International Congress 2023)
  • Mechanical engineering of light-matter interaction in solid-state two-level systems
    (International Workshop for Young Researcher on the Future of Quantum Science and Technology 2020)
  • Mechanical control of localized excitons: strain-induced coupling of dark and bright states and mechanical control of exciton lifetime
    (Canada-Japan Workshop on Hybrid Quantum Systems 2019)
  • Mechanical control of bound excitons: strain-induced coupling of dark and bright states
    (Frontiers of Nanomechanical Systems 2019)
more...
Education (3):
  • 2009 - 2014 The University of Tokyo The Graduate School of Engineering Department of Electrical Engineering and Information Systems
  • 2006 - 2009 The University of Tokyo The Faculty of Engineering
  • 2001 - 2006 National Institute of Technology, Tokyo College Department of Electrical Engineering
Professional career (1):
  • 博士(工学) (東京大学)
Work history (2):
  • 2024/07 - 現在 Hokkaido University Research Institute for Electronic Science
  • 2014/04 - 2024/06 日本電信電話株式会社 物性科学基礎研究所 ナノメカニクス研究グループ 主任研究員
Committee career (1):
  • 2019/09 - 2024/09 応用物理学会 プログラム編集委員
Awards (4):
  • 2020/03 - NTT物性科学基礎研究所 業績賞
  • 2019/03 - NTT物性科学基礎研究所 奨励賞
  • 2018/10 - 応用物理学会 講演奨励賞
  • 2016/03 - NTT物性科学基礎研究所 優秀論文賞
Association Membership(s) (1):
応用物理学会
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