Hosaka Kazumoto 保坂一元

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HOSAKA Kazumoto 保坂一元

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Researcher Number	50462859
Other IDs
Affiliation (Current)	2025: 国立研究開発法人産業技術総合研究所, 計量標準総合センター, 副研究部門長
Affiliation (based on the past Project Information) *help	2019 – 2021: 国立研究開発法人産業技術総合研究所, 計量標準総合センター, 副研究部門長 2018: 国立研究開発法人産業技術総合研究所, 計量標準総合センター, 総括研究主幹 2017: 国立研究開発法人産業技術総合研究所, 計量標準総合センター, 研究グループ付 2016: 国立研究開発法人産業技術総合研究所, 計量標準総合センター研究戦略部研究企画室, 研究企画室長 2015 – 2016: 国立研究開発法人産業技術総合研究所, 物理計測標準研究部門, 研究グループ長 … More 2014: 独立行政法人産業技術総合研究所, 計測標準研究部門, 研究科長 2013: 産業技術総合研究所, 計測標準部門, 研究員 2009 – 2013: 独立行政法人産業技術総合研究所, 計測標準研究部門, 主任研究員 2011: 独立行政法人産業技術総合研究所, 計測標準研究部門, 研究室付 Less
Review Section/Research Field	Principal Investigator Atomic/Molecular/Quantum electronics Except Principal Investigator Applied optics/Quantum optical engineering / Atomic/Molecular/Quantum electronics
Keywords	Principal Investigator 周波数安定化レーザー / 光格子時計 / 熱雑音 / 光周波数標準 / 光共振器 / 絶対周波数計測 / 不確かさ評価 / 無人連続運転 / 周波数比 / Sr光格子時計 … More / 安定化レーザー / 秒 / 周波数計測 / TAIへの貢献 / Yb光格子時計 / 光時系 / 協定世界時 / 国際原子時 / 時間周波数標準 / 時系 / セラミック / 周波数安定度 / 光時計 / 低熱膨張セラミック / 狭線幅レーザー / 光コム / 狭線幅化レーザー / 低熱膨張材料 / 超安定化レーザー / 量子エレクトロニクス … More Except Principal Investigator 量子エレクトロニクス / 光周波数コム / 低分散 / 高安定光共振器 / 光時計 / 狭線幅レーザ / 高安定レーザ / 熱雑音 / 周波数安定度 / 高安定共振器 / 光コム / 同位体 / デュアル・コム / 原子・分子物理 / 超精密測定 / 環境分析 / 同位体分析 / デュアルコム / 飽和吸収分光 / 分子分光 / 赤外分光 / 同位体比計測 / 狭線幅光源 / デュアルコム分光 / 光共振器 / サブドップラー分解能 / 差周波光源 / 実用原子時計 / 冷却原子ビーム / イオントラップ / 原子時計 Less

The realisation of an optical time scale based on optical frequency standardsPrincipal Investigator
- Principal Investigator
  
  Hosaka Kazumoto
- Project Period (FY)
  2017 – 2021
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Research Field
  
  Atomic/Molecular/Quantum electronics
- Research Institution
  National Institute of Advanced Industrial Science and Technology
Development of the ultra-stable optical cavity using a ceramic spacerPrincipal Investigator
- Principal Investigator
  
  Kazumoto Hosaka
- Project Period (FY)
  2014 – 2016
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Atomic/Molecular/Quantum electronics
- Research Institution
  National Institute of Advanced Industrial Science and Technology
Development of ultra high resolution mid-infrared molecular spectrometer combining advanced sources
- Principal Investigator
  
  SASADA Hiroyuki
- Project Period (FY)
  2011 – 2013
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Research Field
  
  Atomic/Molecular/Quantum electronics
- Research Institution
  Keio University
Absolute linewidth narrowing of optical frequency comb using an ultrastable cavity
- Principal Investigator
  
  INABA Hajime
- Project Period (FY)
  2011 – 2013
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Applied optics/Quantum optical engineering
- Research Institution
  National Institute of Advanced Industrial Science and Technology
Development of ultra-stable lasers using low-thermal-noise optical cavitiesPrincipal Investigator
- Principal Investigator
  
  HOSAKA Kazumoto
- Project Period (FY)
  2010 – 2012
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Atomic/Molecular/Quantum electronics
- Research Institution
  National Institute of Advanced Industrial Science and Technology
Research on ion-atom cold collisions for ultra-stable atomic clocks
- Principal Investigator
  
  WATABE Kenichi
- Project Period (FY)
  2009 – 2011
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Applied optics/Quantum optical engineering
- Research Institution
  National Institute of Advanced Industrial Science and Technology

All 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 Other

All Journal Article Presentation

[Journal Article] Improved frequency ratio measurement with 87Sr and 171Yb optical lattice clocks at NMIJ2021
- Author(s)
  Yusuke Hisai, Daisuke Akamatsu, Takumi Kobayashi, Kazumoto Hosaka, Hajime Inaba, Feng-Lei Hong, and Masami Yasuda
- Journal Title
  
  Metrologia
  
  Volume: 58 Issue: 1 Pages: 015008-015008
- DOI
  10.1088/1681-7575/abc104
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17H01151, KAKENHI-PROJECT-18H03886, KAKENHI-PROJECT-19J10824, KAKENHI-PROJECT-17K14367
[Journal Article] Demonstration of the nearly continuous operation of an 171Yb optical lattice clock for half a year2020
- Author(s)
  Takumi Kobayashi, Daisuke Akamatsu, Kazumoto Hosaka, Yusuke Hisai, Masato Wada, Hajime Inaba, Tomonari Suzuyama, Feng-Lei Hong, and Masami Yasuda
- Journal Title
  
  Metrologia
  
  Volume: 57 Issue: 6 Pages: 065021-065021
- DOI
  10.1088/1681-7575/ab9f1f
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17H01151, KAKENHI-PROJECT-18H03886, KAKENHI-PROJECT-17K14367
[Journal Article] Development of 8-branch Er:fiber frequency comb for Sr and Yp optical lattice clocks2019
- Author(s)
  Yusuke Hisai, Daisuke Akamatsu, Takumi Kobayashi, Sho Okubo, Inaba Hajime, Kazumoto Hosaka, Masami Yasuda, and Feng-Lei Hong
- Journal Title
  
  Optics Express
  
  Volume: 27 Issue: 5 Pages: 6404-6414
- DOI
  10.1364/oe.27.006404
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-17H01151, KAKENHI-PROJECT-18H03886
[Journal Article] Dual-mode operation of an optical lattice clock using strontium and ytterbium atoms2018
- Author(s)
  Daisuke Akamatsu, Takumi Kobayashi, Yusuke Hisai, Takehiko Tanabe, Kazumoto Hosaka, Masami Yasuda, and Feng-Lei Hong
- Journal Title
  
  IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
  
  Volume: 印刷中 Issue: 6 Pages: 1069-1075
- DOI
  10.1109/tuffc.2018.2819888
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17K14367, KAKENHI-PROJECT-17H01151
[Journal Article] Uncertainty Evaluation of an 171Yb Optical Lattice Clock at NMIJ2018
- Author(s)
  Takumi Kobayashi, Daisuke Akamatsu, Yusuke Hisai, Takehiko Tanabe, Inaba Hajime, Tomonari Suzuyama, Feng-Lei Hong, Kazumoto Hosaka, and Masami Yasuda
- Journal Title
  
  IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
  
  Volume: 65 Issue: 12 Pages: 2449-2458
- DOI
  10.1109/tuffc.2018.2870937
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17K14367, KAKENHI-PROJECT-17H01151
[Journal Article] A Fabry-Perot Etalon with an Ultralow Expansion Ceramic Spacer2013
- Author(s)
  K. Hosaka, H. Inaba, D. Akamatsu, M. Yasuda, J. Sugawara, A. Onae, and F.-L. Hong
- Journal Title
  
  Jpn. J. Appl. Phys
  
  Volume: vol. 52 Issue: 3R Pages: 032402-032402
- DOI
  10.7567/jjap.52.032402
- NAID
  40019616902
- Data Source
  KAKENHI-PROJECT-22540415
[Journal Article] Spectroscopy of ^<17>1Yb in an optical lattice based on laser linewidth transfer using a narrow linewidth frequency comb2013
- Author(s)
  H. Inaba, K. Hosaka, M. Yasuda, Y. Nakajima, K. Iwakuni, D. Akamatsu, S. Okubo, T. Kohno, A. Onae, and F.-L. Hong
- Journal Title
  
  Optics Express
  
  Volume: Vol.21 Pages: 7891-7896
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23560048
[Journal Article] Spectroscopy of 171Yb in an optical lattice based on laser linewidth transfer using a narrow linewidth frequency comb2013
- Author(s)
  H. Inaba, K. Hosaka, M. Yasuda, Y. Nakajima, K. Iwakuni, D. Akamatsu, S. Okubo, T. Kohno, A. Onae, and F.-L. Hong
- Journal Title
  
  Opt. Express
  
  Volume: 21 Pages: 7891-7896
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23560048
[Journal Article] Narrow linewidth comb realized with a mode-locked fiber laser using an intra-cavity waveguide electro-optic modulator for high-speed control2012
- Author(s)
  K. Iwakuni, H. Inaba, Y. Nakajima, T. Kobayashi, K. Hosaka, A. Onae, and F.-L. Hong
- Journal Title
  
  Opt. Express
  
  Volume: 20 Pages: 13769-13776
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23560048
[Journal Article] Narrow linewidth comb realized with a mode-locked fiber laser using an intra-cavity waveguide electro-optic modulator for high-speed control2012
- Author(s)
  K. Iwakuni, H. Inaba, Y. Nakajima, T. Kobayashi, K. Hosaka, A. Onae, and F.-L. Hong
- Journal Title
  
  Optics Express
  
  Volume: Vol.20 Pages: 13769-13776
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23560048
[Journal Article] 光コムによる精度19桁級の周波数合成2011
- Author(s)
  稲場肇、中嶋善晶、保坂一元、大苗敦、洪鋒雷
- Journal Title
  
  レーザー研究
  
  Volume: 39巻 Pages: 819-824
- NAID
  10030151593
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23560048
[Presentation] Yb光格子時計の半年間にわたる準連続運転と国際原子時への貢献2021
- Author(s)
  小林拓実、赤松大輔、保坂一元、久井裕介、和田雅人、稲場肇、洪鋒雷、安田正美
- Organizer
  日本物理学会
- Data Source
  KAKENHI-PROJECT-17H01151
[Presentation] Contribution to International Atomic Time by the nearly continuous operation of an Yb optical lattice clock2021
- Author(s)
  小林拓実、赤松大輔、保坂一元、久井裕介、西山明子、川崎瑛生、和田雅人、稲場肇、田邊健彦、洪鋒雷、安田正美
- Organizer
  ATF
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17H01151
[Presentation] Progress report of the 171Yb optical lattice clock NMIJ-Yb12021
- Author(s)
  小林拓実、赤松大輔、保坂一元、久井裕介、和田雅人、稲場肇、田邊健彦、洪鋒雷、安田正美
- Organizer
  IEEE EFTF-IFCS
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17H01151
[Presentation] Sr optical lattice clock assisted by optical frequency combs for contribution to International Atomic Time2020
- Author(s)
  久井裕介、赤松大輔、小林拓実、保坂一元、稲場肇、洪鋒雷、安田正美
- Organizer
  CLEO
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17H01151
[Presentation] Development of an operational Yb optical lattice clock towards contribution to the International Atomic Time2020
- Author(s)
  小林拓実、赤松大輔、保坂一元、久井裕介、稲場肇、鈴山智也、洪鋒雷、安田正美
- Organizer
  CPEM
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17H01151
[Presentation] Nearly continuous operation of an Yb optical lattice clock towards contribution to the International Atomic Time2020
- Author(s)
  小林拓実、赤松大輔、保坂一元、久井裕介、稲場肇、鈴山智也、洪鋒雷、安田正美
- Organizer
  IEEE IFCS-ISAF
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17H01151
[Presentation] 産総研におけるYb/Sr時計周波数比計測の不確かさ低減2020
- Author(s)
  久井裕介、赤松大輔、小林拓実、保坂一元、稲場肇、洪鋒雷、安田正美
- Organizer
  日本物理学会
- Data Source
  KAKENHI-PROJECT-17H01151
[Presentation] 国際原子時への貢献を目指したSrおよびYb光格子時計の改善2019
- Author(s)
  小林拓実、赤松大輔、久井裕介、洪鋒雷、保坂一元、安田正美
- Organizer
  日本物理学会
- Data Source
  KAKENHI-PROJECT-17H01151
[Presentation] 産総研におけるYb光格子時計3号機2018
- Author(s)
  小林拓実、赤松大輔、久井裕介、田邉健彦、稲場肇、鈴山智也、洪鋒雷、保坂一元、安田正美
- Organizer
  日本物理学会
- Data Source
  KAKENHI-PROJECT-17H01151
[Presentation] Development of an ytterbium optical lattice clock at NMIJ2018
- Author(s)
  小林拓実、赤松大輔、久井裕介、田邉健彦、稲場肇、鈴山智也、洪鋒雷、保坂一元、安田正美
- Organizer
  European Frequency and Time Forum (EFTF)
- Data Source
  KAKENHI-PROJECT-17H01151
[Presentation] An 8-branch optical frequency comb for laser frequency stabilization and measurement in optical lattice clocks2018
- Author(s)
  久井裕介、赤松大輔、小林拓実、大久保章、稲場肇、保坂一元、洪鋒雷、安田正美
- Organizer
  Conference on Lasers and Electro-Optics (CLEO)
- Data Source
  KAKENHI-PROJECT-17H01151
[Presentation] Development of an 8-branch optical frequency comb for laser frequency stabilization2017
- Author(s)
  久井裕介、赤松大輔、小林拓実、大久保章、稲場肇、洪鋒雷、保坂一元
- Organizer
  Conference on Lasers and Electro-Optics Pacific Rim (CLEO PR)
- Data Source
  KAKENHI-PROJECT-17H01151
[Presentation] A compact light source at 399 nm using a periodically poled LiNb03 waveguide for laser cooling ytterbium2017
- Author(s)
  小林拓実、赤松大輔、西田好毅、田邉健彦、安田正美、洪鋒雷、保坂一元
- Organizer
  Union Radio-Scientifique Internationale (URSI)
- Data Source
  KAKENHI-PROJECT-17H01151
[Presentation] A narrow linewidth laser system for strontium and ytterbium optical lattice clocks2017
- Author(s)
  小林拓実、稲場肇、赤松大輔、大久保章、保坂一元
- Organizer
  Union Radio-Scientifique Internationale (URSI)
- Data Source
  KAKENHI-PROJECT-17H01151
[Presentation] 周波数安定化のための8ブランチ光周波数コムの開発2017
- Author(s)
  久井裕介、赤松大輔、小林拓実、大久保章、稲場肇、保坂一元、洪鋒雷、安田正美
- Organizer
  日本物理学会
- Data Source
  KAKENHI-PROJECT-17H01151
[Presentation] Yb/Srデュアル光格子時計による時計遷移周波数比の測定22017
- Author(s)
  赤松大輔、小林拓実、久井裕介、田邉健彦、保坂一元、洪鋒雷、安田正美
- Organizer
  日本物理学会
- Data Source
  KAKENHI-PROJECT-17H01151
[Presentation] Precise frequency comparison of clocks considering the dead time uncertainty of frequency link2016
- Author(s)
  Takehiko Tanabe, Daisuke Akamatsu, Takumi Kobayashi, Akifumi Takamizawa, Shinya Yanagimachi, Takeshi Ikegami, Tomonari Suzuyama, Hajime Inaba, Sho Okubo, Masami Yasuda, Feng-Lei Hong, Atsushi Onae, and Kazumoto Hosaka
- Organizer
  EFTF 2016
- Place of Presentation
  英国、York
- Year and Date
  2016-04-05
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26400423
[Presentation] Precise frequency comparison of clocks considering the dead time uncertainty of frequency link2016
- Author(s)
  Kazumoto Hosaka
- Organizer
  EFTF2016
- Place of Presentation
  York, UK
- Year and Date
  2016-04-05
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26400423
[Presentation] A dual optical lattice clock driven by clock lasers stabilized to a narrow linewidth comb2015
- Author(s)
  Kazumoto Hosaka
- Organizer
  IFCS-EFTF 2015
- Place of Presentation
  Denver, USA
- Year and Date
  2015-04-13
- Data Source
  KAKENHI-PROJECT-26400423
[Presentation] 長さの国家標準としての光コムとその応用動向2015
- Author(s)
  保坂一元
- Organizer
  精密工学会2015年秋季大会
- Place of Presentation
  仙台
- Year and Date
  2015-09-04
- Data Source
  KAKENHI-PROJECT-26400423
[Presentation] A dual optical lattice clock driven by clock lasers stabilized to a narrow linewidth comb2015
- Author(s)
  Kazumoto Hosaka
- Organizer
  EFTF-IFCS 2015
- Place of Presentation
  Denver, USA
- Year and Date
  2015-04-12
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26400423
[Presentation] Accurate frequency comparison of clocks considering the effect of the distributed dead-time2015
- Author(s)
  Kazumoto Hosaka
- Organizer
  ATF2015
- Place of Presentation
  北京、中国
- Year and Date
  2015-10-31
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26400423
[Presentation] 近赤外デュアルコム分光計の超広帯域化2014
- Author(s)
  大久保章、岩國加奈、稲場肇、長谷川太郎、保坂一元、大苗敦、佐々田博之、洪鋒雷
- Organizer
  第61回応用物理学会春季学術講演会
- Place of Presentation
  青山学院大学相模原キャンパス
- Year and Date
  2014-03-18
- Data Source
  KAKENHI-PROJECT-23244084
[Presentation] 光格子時計用狭線幅化レーザー光源の開発2014
- Author(s)
  保坂一元、大久保章、稲場肇、赤松大輔、安田正美、大苗敦、洪鋒雷
- Organizer
  第61回応用物理学会春季学術講演会
- Place of Presentation
  青山学院大学、神奈川県相模原市
- Year and Date
  2014-03-17
- Data Source
  KAKENHI-PROJECT-23560048
[Presentation] 光コムを用いた波長の異なる狭線幅レーザーの周波数安定度測定2014
- Author(s)
  保坂一元
- Organizer
  第75回応用物理学会秋季講演会
- Place of Presentation
  北海道大学（北海道札幌市）
- Year and Date
  2014-09-18
- Data Source
  KAKENHI-PROJECT-26400423
[Presentation] Ultra-Broadband Dual-Comb Spectroscopy with Narrow Linewidth Fiber Combs2014
- Author(s)
  K. Iwakuni, S. Okubo, H. Inaba, K. Hosaka, A. Onae, H. Sasada, F.-L. Hong
- Organizer
  International conference on fundamental physics using atoms (FPUA2014)
- Place of Presentation
  科学未来館
- Year and Date
  2014-03-14
- Data Source
  KAKENHI-PROJECT-23244084
[Presentation] Dual-comb spectroscopy of C_2H_2, CH_4and H_2O over 1.0-1.7μm2014
- Author(s)
  K. Iwakuni, S. Okubo, H. Inaba, K. Hosaka, A. Onae, H. Sasada, F.-L. Hong
- Organizer
  International Symposium on Molecular Spectroscopy
- Place of Presentation
  University of Illinois, U.S.A.
- Year and Date
  2014-06-17
- Data Source
  KAKENHI-PROJECT-23244084
[Presentation] デュアルコム分光計による超広帯域分光2014
- Author(s)
  岩國加奈、大久保章、稲場肇、保坂一元、大苗敦、佐々田博之、洪鋒雷
- Organizer
  日本物理学会第69回年次大会
- Place of Presentation
  東海大学湘南キャンパス
- Year and Date
  2014-03-30
- Data Source
  KAKENHI-PROJECT-23244084
[Presentation] 低熱膨張セラミックを用いた光共振器の開発2013
- Author(s)
  K Hosaka
- Organizer
  2013年第60回応用物理学会春季大会
- Place of Presentation
  神奈川県厚木市、神奈川工科大学
- Data Source
  KAKENHI-PROJECT-22540415
[Presentation] 低熱膨張セラミックを用いた光共振器の開発2013
- Author(s)
  保坂一元, 稲場肇, 赤松大輔, 安田正美, 菅原潤, 大苗敦, 洪鋒雷
- Organizer
  2013 年第60回応用物理学会春季大会
- Place of Presentation
  神奈川工科大学(神奈川県)
- Data Source
  KAKENHI-PROJECT-22540415
[Presentation] デュアル・コム装置を用いた広帯域アセチレン分光測定2013
- Author(s)
  大久保章、岩國加奈、稲場肇、長谷川太郎、保坂一元、大苗敦、佐々田博之、洪鋒雷
- Organizer
  日本物理学会 2013年秋季大会
- Place of Presentation
  徳島大学常三島キャンパス
- Year and Date
  2013-09-28
- Data Source
  KAKENHI-PROJECT-23244084
[Presentation] An application of an ultra-low expansion ceramic to optical cavities for narrow linewidth lasers2013
- Author(s)
  K. Hosaka, H. Inaba, D. Akamatsu, M. Yasuda, J. Sugawara, A. Onae, and F.-L. Hong
- Organizer
  Workshop on the Optical Frequency Standards
- Place of Presentation
  独立行政法人情報通信研究機構(東京都)
- Data Source
  KAKENHI-PROJECT-22540415
[Presentation] 近赤外デュアル・コム広帯域分光システムの開発2013
- Author(s)
  大久保章、岩國加奈、稲場肇、長谷川太郎、保坂一元、大苗敦、佐々田博之、洪鋒雷
- Organizer
  第74回応用物理学会秋季学術講演会
- Place of Presentation
  同志社大学京田辺キャンパス
- Year and Date
  2013-09-19
- Data Source
  KAKENHI-PROJECT-23244084
[Presentation] 狭線幅光コムを用いたデュアル・コム装置の開発2013
- Author(s)
  岩國加奈、大久保章、稲場肇、長谷川太郎、保坂一元、大苗敦、佐々田博之、洪鋒雷
- Organizer
  日本物理学会 2013年秋季大会
- Place of Presentation
  徳島大学常三島キャンパス
- Year and Date
  2013-09-28
- Data Source
  KAKENHI-PROJECT-23244084
[Presentation] An application of an ultra-low expansion ceramic to optical cavities for narrow linewidth lasers2013
- Author(s)
  K Hosaka
- Organizer
  Workshop on the Optical Frequency Standards
- Place of Presentation
  東京都小金井市、独立行政法人情報通信研究機構
- Data Source
  KAKENHI-PROJECT-22540415
[Presentation] Towards a new clock laser system using a ceramic cavity and laser linewidth transfer technique2013
- Author(s)
  K. Hosaka, H. Inaba, D. Akamatsu, M. Yasuda, J. Sugawara, A. Onae, and F.-L. Hong
- Organizer
  The 2013 Joint UFFC, EFTF, and PFM Symposium
- Place of Presentation
  Prague, Czech Republic
- Data Source
  KAKENHI-PROJECT-22540415
[Presentation] Optical cavities for ultra-narrow-linewidth lasers2012
- Author(s)
  K. Hosaka
- Organizer
  Workshop on Optical Comb, Clock and Related Devices
- Place of Presentation
  独立行政法人産業技術総合研究所(茨城県)
- Year and Date
  2012-10-03
- Data Source
  KAKENHI-PROJECT-22540415
[Presentation] Optical cavities for ultra-narrow-linewidth lasers2012
- Author(s)
  K Hosaka
- Organizer
  Workshop on Optical Comb, Clock and Related Devices
- Place of Presentation
  茨城県つくば市、独立行政法人産業技術総合研究所
- Data Source
  KAKENHI-PROJECT-22540415
[Presentation] Fiber-based frequency comb with relative frequency stability of 10-20-level2011
- Author(s)
  Hajime INABA, Yoshiaki NAKAJIMA, Kana IWAKUNI, Kazumoto HOSAKA, Atsushi ONAE, Masami YASUDA, Daisuke AKAMATSU, and Feng-Lei HONG
- Organizer
  SPIE Optics+Photonics 2011
- Place of Presentation
  San-Diego, USA
- Data Source
  KAKENHI-PROJECT-23560048
[Presentation] Fiber-based frequency comb with relative frequency stability of 10-20 level2011
- Author(s)
  Hajime Inaba, Yoshiaki Nakajima, Kana Iwakuni, Kazumoto Hosaka, Atsushi Onae, Masami Yasuda, Daisuke Akamatsu, and Feng-Lei Hong
- Organizer
  SPIE Optics + Photonics 2011
- Place of Presentation
  サンディエゴ国際会議場(カリフォルニア州、アメリカ)
- Year and Date
  2011-08-24
- Data Source
  KAKENHI-PROJECT-23560048
[Presentation] 近赤外デュアルコム分光計の超広帯域化
- Author(s)
  大久保　章、岩國　加奈、稲場　肇、長谷川　太郎、保坂　一元、大苗　敦、佐々田　博之、洪　鋒雷
- Organizer
  第６１回応用物理学会春季学術講演会
- Place of Presentation
  青山学院大学相模原キャンパス
- Invited
- Data Source
  KAKENHI-PROJECT-23244084
[Presentation] デュアルコム分光計による超広帯域分光
- Author(s)
  岩國　加奈、大久保　章、稲場　肇、保坂　一元、大苗　敦、佐々田　博之、洪　鋒雷
- Organizer
  日本物理学会第６９回年次大会
- Place of Presentation
  東海大学湘南キャンパス
- Data Source
  KAKENHI-PROJECT-23244084
[Presentation] Ultra-Broadband Dual-Comb Spectroscopy with Narrow Linewidth Fiber Combs
- Author(s)
  K. Iwakuni, S. Okubo, H. Inaba, K. Hosaka, A. Onae, H. Sasada, F.-L. Hong
- Organizer
  International conference on fundamental physics using atoms
- Place of Presentation
  科学未来館
- Data Source
  KAKENHI-PROJECT-23244084

1. INABA Hajime (70356492)

# of Collaborated Projects: 5 results

# of Collaborated Products: 39 results
2. WATABE Kenichi (50358389)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
3. HONG Fen-lei (10260217)

# of Collaborated Projects: 2 results

# of Collaborated Products: 28 results
4. TAKAMIZAWA Akifumi (50462833)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
5. SASADA Hiroyuki (30146576)

# of Collaborated Projects: 1 results

# of Collaborated Products: 10 results
6. YOSHIDA Naohiro (60174942)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
7. TSUJI Kiyoshi (90272707)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
8. 大久保章 (30635800)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
9. 小林拓実 (40758398)

# of Collaborated Projects: 1 results

# of Collaborated Products: 21 results
10. 赤松大輔 (90549883)

# of Collaborated Projects: 1 results

# of Collaborated Products: 19 results
11. 鈴山智也 (30359111)

# of Collaborated Projects: 1 results

# of Collaborated Products: 5 results

Hosaka Kazumoto 保坂 一元

HOSAKA Kazumoto 保坂 一元

Research Projects

Research Products

Co-Researchers

The realisation of an optical time scale based on optical frequency standardsPrincipal Investigator

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Development of the ultra-stable optical cavity using a ceramic spacerPrincipal Investigator

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Development of ultra high resolution mid-infrared molecular spectrometer combining advanced sources

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Absolute linewidth narrowing of optical frequency comb using an ultrastable cavity

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Development of ultra-stable lasers using low-thermal-noise optical cavitiesPrincipal Investigator

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Research on ion-atom cold collisions for ultra-stable atomic clocks

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[Journal Article] Improved frequency ratio measurement with 87Sr and 171Yb optical lattice clocks at NMIJ2021

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[Journal Article] Demonstration of the nearly continuous operation of an 171Yb optical lattice clock for half a year2020

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[Journal Article] Development of 8-branch Er:fiber frequency comb for Sr and Yp optical lattice clocks2019

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[Journal Article] Dual-mode operation of an optical lattice clock using strontium and ytterbium atoms2018

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[Journal Article] Uncertainty Evaluation of an 171Yb Optical Lattice Clock at NMIJ2018

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[Journal Article] A Fabry-Perot Etalon with an Ultralow Expansion Ceramic Spacer2013

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NAID

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[Journal Article] Spectroscopy of ^<17>1Yb in an optical lattice based on laser linewidth transfer using a narrow linewidth frequency comb2013

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[Journal Article] Spectroscopy of 171Yb in an optical lattice based on laser linewidth transfer using a narrow linewidth frequency comb2013

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Hosaka Kazumoto 保坂一元

HOSAKA Kazumoto 保坂一元