Yoshioka Kosuke

Affiliation and department：
Homepage URL (1)： http://kaken.nii.ac.jp/ja/r/70451804

Research field (1)： Semiconductors, optical and atomic physics

Research keywords (6)：ポジトロニウム , ボース・アインシュタイン凝縮 , エキゾチック原子 , フェムト秒光周波数コム , 励起子 , レーザー分光

Research theme for competitive and other funds (10)：

2024 - 2028 Precision spectroscopy of ultralcold antimatter systems with three-dimensional laser-cooled positronium
2020 - 2023 Development of Y-band solid-state astro-comb with long-term stability for exoplanet search
2019 - 2022 炭素原子気体の精密分光と冷却の実現
2017 - 2020 Realization of laser cooling of positronium atoms and test of the weak equivalence principle using an optical frequency comb
2014 - 2018 Research on formation of quantum ordered states in ultra cold electron-hole system by spectroscopy of electron states under extreme environments

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Papers (79)：

K. Shu, Y. Tajima, R. Uozumi, N. Miyamoto, S. Shiraishi, T. Kobayashi, A. Ishida, K. Yamada, R. W. Gladen, T. Namba, et al. Cooling positronium to ultralow velocities with a chirped laser pulse train. Nature. 2024. 633. 8031. 793-797
Kenji Shu, Naoki Miyamoto, Yuto Motohashi, Ryosuke Uozumi, Yohei Tajima, Kosuke Yoshioka. Development of a laser for chirp cooling of positronium to near the recoil limit using a chirped pulse-train generator. Physical Review A. 2024. 109. 4. 043520-1-043520-12
Kosuke Yoshioka. Bose-Einstein Condensation of Excitons in a bulk semiconductor. Encyclopedia of Condensed Matter Physics. 2023
Kenji Shu, Kyohei Yamada, Kaori Hashidate, Akira Ishida, Toshio Namba, Shoji Asai, Makoto Kuwata-Gonokami, Yohei Tajima, Eunmi Chae, Kosuke Yoshioka, et al. Development of a porous silica cavity for laser excitation of confined positronium. JJAP Conference Proceedings. 2023. 9. 011202-011202
J. Omachi, N. Naka, K. Yoshioka, M. Kuwata-Gonokami. Mid-infrared dielectric response of Fermi-degenerate electron-hole droplets in diamond. Physical Review B. 2022. 106. 23. 235205-1-235205-11

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MISC (125)：

周健治, 白石蒼馬, 魚住亮介, 吉岡孝高. Simulation of laser cooling of positronium atoms based on Lindblad master equation. 日本物理学会講演概要集(CD-ROM). 2024. 79. 1
魚住亮介, 吉岡孝高. Effect of laser pulse fluence of multimode lasers on Doppler spectroscopy of positronium. 日本物理学会講演概要集(CD-ROM). 2024. 79. 1
阪本天志, 鈴木滉平, 吉岡孝高. Observation of buffer-gas cooling of neutral carbon atoms via two-photon induced fluorescence. 日本物理学会講演概要集(CD-ROM). 2024. 79. 1
石田明, 難波俊雄, 浅井祥仁, 田島陽平, 小林拓豊, 魚住亮介, 周健治, 吉岡孝高, 大島永康, O’ROURKE Brian E., et al. Development of nanomaterials for positronium formation aiming at Bose-Einstein condensation. アイソトープ・放射線研究発表会(Web). 2023. 60th
阪本天志, 澤岡洋光, FRENETT Alexander, NASIR Abdullah, LUNSTAD Annika, LI Mingda, 小野祐, LAMPSON Hana, LASNER Zack D., 吉岡孝高, et al. Development of a cryogenic buffer gas beam source of SrOH molecules for measuring the electron’s electric dipole moment. 日本物理学会講演概要集(CD-ROM). 2023. 78. 1

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Lectures and oral presentations (79)：

Laser cooling of positronium and prospects for precision spectroscopy
(The 13th International Workshop on Positron and Positronium Chemistry (PPC13) 2024)
Laser cooling of positronium for precision spectroscopy of purely leptonic atoms
(The 14th Japan-US Joint Seminar on Quantum Electronics and Laser Spectroscopy 2024)
中赤外誘導吸収イメージングを用いた励起子BECの直接観測2
(日本物理学会第79回年次大会 2024)
任意の亜酸化銅励起子状態の歪誘起エネルギーシフトの数値計算
(日本物理学会第79回年次大会 2024)
サブケルビン温度領域における亜酸化銅励起子のオルソ-パラ転換レートの温度依存性
(日本物理学会第79回年次大会 2024)

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Work history (6)：

2016/04 - 現在 The University of Tokyo The Graduate School of Engineering Associate Professor
2015/04 - 2016/03 The University of Tokyo Graduate School of Science Lecturer
2010/07 - 2015/03 The University of Tokyo Graduate School of Science Assistant Professor
2010/04 - 2010/06 The University of Tokyo The Graduate School of Engineering Assistant Professor
2007/04 - 2010/03 The University of Tokyo The Graduate School of Engineering Assistant Professor

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Awards (2)：

2024/11 - Millenium Science Forum Sir Martin Wood Prize Realisation of Bose-Einstein condensation of excitons
2012/03 - The Physical Society of Japan Young Scientist Award of the Physical Society of Japan

Association Membership(s) (3)：

レーザー学会 , Optical Society of America , 日本物理学会

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