Daisuke Akamatsu

アカマツダイスケ | Daisuke Akamatsu

Research field (1)： Applied physics - general

Research keywords (1)： quantum electronics

Research theme for competitive and other funds (9)：

2022 - 2026 Yb光格子時計の長期運転による新規物理現象の探索
2018 - 2023 狭線幅かつ高安定な周波数安定化レーザーに関する研究
2017 - 2022 The realisation of an optical time scale based on optical frequency standards
2016 - 2020 Mixture of ultracold atoms and a single nanoparticle of Si
2015 - 2018 Development of an light-controlled cold atomic beam source for a transportable optical lattice clock

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Papers (81)：

Takumi Kobayashi, Akiko Nishiyama, Kazumoto Hosaka, Daisuke Akamatsu, Akio Kawasaki, Masato Wada, Hajime Inaba, Takehiko Tanabe, Masami Yasuda. Improved absolute frequency measurement of ¹⁷¹Yb at NMIJ with uncertainty below 2 × 10^-16. Metrologia. 2025
Tsubasa Kashimura, Yohei Sugiyama, Shijun Wu, Yoshiaki Nakajima, Wataru Kokuyama, Daisuke Akamatsu, Feng-Lei Hong. Development of a 1 Hz relative linewidth Er:fiber comb utilizing a semiconductor saturable absorber mirror. Japanese Journal of Applied Physics. 2025. 64. 2. 022005-022005
Takumi Kobayashi, Daisuke Akamatsu, Kazumoto Hosaka, Yusuke Hisai, Akiko Nishiyama, Akio Kawasaki, Masato Wada, Hajime Inaba, Takehiko Tanabe, Tomonari Suzuyama, et al. Generation of a precise time scale assisted by a near-continuously operating optical lattice clock. Physical Review Applied. 2024. 21. 6
Yohei Sugiyama, Yuga Kondo, Tomoyuki Horikiri, Daisuke Akamatsu, Feng-Lei Hong. Phase locking and absolute frequency stabilization of laser sources for a Pr:YSO quantum memory. Applied Physics Express. 2024. 17. 5. 052002-052002
Junia Nomura, Tomohiko Momma, Yuki Kojima, Yusuke Hisai, Takumi Kobayashi, Daisuke Akamatsu, Feng-Lei Hong. Direct loading of Yb atoms into a 3D magneto-optical trap from a dispenser atomic source. AIP Advances. 2023. 13. 2

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MISC (94)：

小林拓実, 高見澤昭文, 赤松大輔, 川崎瑛生, 西山明子, 保坂一元, 久井裕介, 和田雅人, 稲場肇, 田邊健彦, et al. Search for ultralight dark matter from long-term comparisons of an Yb optical lattice clock and a Cs fountain clock. 日本物理学会講演概要集(CD-ROM). 2023. 78. 1
西原幹恭, 郷治侑真, 西田卓史, 和田雅人, 稲場肇, 赤松大輔, HONG Feng-Lei. Temperature control of a fiber interferometer for laser linewidth narrowing. Optics & Photonics Japan講演予稿集(CD-ROM). 2021. 2021
小嶋優輝, 門馬知彦, 田邉悠斗, 池田幸平, 久井裕介, 赤松大輔, 赤松大輔, HONG F.-L. Frequency measurement of the 399 nm transition in Yb atoms using an Er:fiber frequency comb. 日本物理学会講演概要集(CD-ROM). 2021. 76. 1
郷治侑真, 西原幹恭, 加藤令偉, 池田幸平, 和田雅人, 稲場肇, 赤松大輔, HONG Feng-Lei. Temperature dependence of a fiber-based interferometer for laser linewidth narrowing. 日本物理学会講演概要集(CD-ROM). 2021. 76. 2
吉木万由子, 加藤令偉, 松永祥吾, 赤松大輔, HONG Feng-Lei. High-resolution spectroscopy of molecular iodine at 514 nm. 日本物理学会講演概要集(CD-ROM). 2021. 76. 2

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Lectures and oral presentations (2)：

Ultraslow propagation of squeezed vacuum with Electromagnetically Induced Transparency
(The 20th International Conference on Atomic Physics (ICAP2006) 2006)
Application of storage of light technique
(The 5th Laser Cooling Workshop 2003)

Education (6)：

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Work history (6)：

2021/01 - 現在 Yokohama National University Faculty of Engineering Division of Intelligent Systems Engineering
2021/01 - 2022/03 National Institute of Advanced Industrial Science and Technology
2009/04 - 2020/12 National Institute of Advanced Industrial Science and Technology Time Standards Research Group Senior Researcher
2015/01 - 2016/01 massachusetts institute of technology Reaserch Laboratory of Electronics Visitting Resarcher
2007/04 - 2009/03 University of Tokyo JSPS Resarch Fellowship for Young Scientist - PD

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