Yokoyama Keiichi 横山啓一

… Alternative Names

YOKOYAMA Keiichi 横山啓一

横山啓一ヨコヤマケイイチ

Less

Researcher Number	60354990
Other IDs
Affiliation (Current)	2025: 国立研究開発法人日本原子力研究開発機構, 原子力科学研究所物質科学研究センター, 研究嘱託
Affiliation (based on the past Project Information) *help	2024: 国立研究開発法人日本原子力研究開発機構, 原子力科学研究所物質科学研究センター, 研究嘱託 2022 – 2023: 国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門原子力科学研究所物質科学研究センター, 研究嘱託 2022: 国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門原子力科学研究所物質科学研究センター, 研究主幹 2019: 国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門原子力科学研究所物質科学研究センター, グループリーダー 2018: 国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門原子力科学研究所物質科学研究センター, マネージャー … More 2017: 国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門物質科学研究センター, マネージャー 2016: 国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門物質科学研究センター, 研究主幹 2015: 国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門量子ビーム応用研究センター, リーダー 2008 – 2012: Japan Atomic Energy Agency, 量子ビーム応用研究部門, 研究主幹 2010: Japan Atomic Energy Agency, 量子ビーム応用研究部門, グループリーダー 2003: 特殊法人日本原子力研究所, 光量子科学研究センター, 副主任研究員 Less
Review Section/Research Field	Principal Investigator Nuclear engineering / Basic Section 31010:Nuclear engineering-related / Science and Engineering Except Principal Investigator Basic Section 31010:Nuclear engineering-related
Keywords	Principal Investigator 同位体分離 / フラーレン / テラヘルツ波 / セシウム / ヨウ化セシウム / 最適制御理論 / 量子制御 / EOサンプリング / XPS / 吸着エネルギー … More / クロムレーザー / 有機結晶 / テラヘルツ / 量子力学 / トラジェクトリー計算 / セシウム原子 / C60薄膜 / 有機非線形光学結晶 / 量子ウォーク / ヨウ化セシウム分子 / ヨウ素分子 / 光分解画像分光 / 振動状態分布 / フィラメンテーション / 波形整形パルス / 多段階励起 / インパルシブラマン / CARS分光 / Li2分子線 / 回転分布測定法 / 量子論的拡散 / 狭帯域再生増幅 / ハロゲン化アルカリ / 回転分布 / CARS / カスケード回転励起 / 塩化カリウム分子 / ハロゲン化アルカリ分子 / 回転状態分布 / 運動量画像分光 / 窒素分子 / カスケード励起 / 多段階誘導ラマン / 同位体選択 / 波形整形 / レーザー / 分子内部状態 / 最適制御 / 選択励起 / 非同軸位相整合 / 差周波混合 / 中赤外フェムト秒パルス … More Except Principal Investigator 溶媒抽出 / 放射光XAFS / 共鳴多光子励起 / 超プルトニウム元素 / 時間分解測定 / ｆ電子系イオン / 放射光実験 / 酸化還元 / 超ウラン元素 / 酸化還元反応 / その場観察システム / アメリシウム / 電子状態 / XAFS / 放射光時間分解測定 / 多光子励起 Less

量子ウォークによる同位体分離の原理的研究Principal Investigator
- Principal Investigator
  
  横山啓一
- Project Period (FY)
  2022 – 2024
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 31010:Nuclear engineering-related
- Research Institution
  Japan Atomic Energy Agency
Multiphoton Excitation Phenomena for Trans-Plutonium Elements and Challenge to Separation for Waste Zero-Emission
- Principal Investigator
  
  矢板毅
- Project Period (FY)
  2022 – 2024
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 31010:Nuclear engineering-related
- Research Institution
  Japan Atomic Energy Agency
Study on isotope separation based on quantum diffusionPrincipal Investigator
- Principal Investigator
  
  Yokoyama Keiichi
- Project Period (FY)
  2015 – 2019
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Research Field
  
  Nuclear engineering
- Research Institution
  Japan Atomic Energy Agency
Study on intra-molecular cascade isotope separationPrincipal Investigator
- Principal Investigator
  
  YOKOYAMA Keiichi
- Project Period (FY)
  2008 – 2012
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Nuclear engineering
- Research Institution
  Japan Atomic Energy Agency
中赤外フェムト秒パルスの波形整形と量子制御への応用Principal Investigator
- Principal Investigator
  
  横山啓一
- Project Period (FY)
  2003
- Research Category
  
  Grant-in-Aid for Scientific Research on Priority Areas
- Review Section
  
  Science and Engineering
- Research Institution
  Japan Atomic Energy Agency

[Book] 量子ウォークの新展開第12章2019
- Author(s)
  横山啓一、松岡雷士
- Total Pages
  14
- Publisher
  培風館
- ISBN
  9784563011628
- Data Source
  KAKENHI-PROJECT-15H02345
[Book] NSAコメンタリーシリーズNo.22　「放射性廃棄物減容化・有害度低減の技術開発 --　核種分離・転換」第5章第2節2016
- Author(s)
  横山啓一
- Total Pages
  12
- Publisher
  原子力システム研究懇話会
- Data Source
  KAKENHI-PROJECT-15H02345
[Book] Quantum control of molecular vibration and rotation toward the isotope separation, Advances in Intense Laser Science & Photonics2010
- Author(s)
  K. Yokoyama, L. Matsuoka, T. Kasajima, M. Tsubouchi, A. Yokoyama
- Publisher
  Publishing House for Science and Technology
- Data Source
  KAKENHI-PROJECT-20360423
[Book] 使用済み核燃料のレーザー同位体分離光科学研究の最前線 22009
- Author(s)
  横山啓一
- Total Pages
  125
- Publisher
  強光子場科学研究懇談会
- Data Source
  KAKENHI-PROJECT-20360423
[Journal Article] Molecular geochemistry of radium: A key to understanding cation adsorption reaction on clay minerals2024
- Author(s)
  Yamaguchi Akiko、Kurihara Yuichi、Nagata Kojiro、Tanaka Kazuya、Higaki Shogo、Kobayashi Tohru、Tanida Hajime、Ohara Yoshiyuki、Yokoyama Keiichi、Yaita Tsuyoshi、Yoshimura Takashi、Okumura Masahiko、Takahashi Yoshio
- Journal Title
  
  Journal of Colloid and Interface Science
  
  Volume: 661 Pages: 317-332
- DOI
  10.1016/j.jcis.2024.01.120
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-23K17034, KAKENHI-PROJECT-22K04994, KAKENHI-PROJECT-21K18917, KAKENHI-PROJECT-22K14629, KAKENHI-PROJECT-22KF0083, KAKENHI-PROJECT-21H02090
[Journal Article] 高レベル放射性廃液中の元素を光で選別2023
- Author(s)
  松田晶平、横山啓一
- Journal Title
  
  Isotope News
  
  Volume: 786 Pages: 6-9
- Data Source
  KAKENHI-PROJECT-22K04994
[Journal Article] Laser-fluence dependence of resonance-enhanced multiphoton reduction of trivalent europium2022
- Author(s)
  Matsuda Shohei、Nakashima Nobuaki、Yokoyama Keiichi、Taniguchi Seiji、Chosrowjan Haik、Somekawa Toshihiro、Yatsuhashi Tomoyuki
- Journal Title
  
  Chemical Physics Letters
  
  Volume: 802 Pages: 139759-139759
- DOI
  10.1016/j.cplett.2022.139759
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21K04833, KAKENHI-PROJECT-22K04994, KAKENHI-PROJECT-20K19999, KAKENHI-PUBLICLY-21H00152, KAKENHI-PROJECT-23K23280
[Journal Article] Marking actinides for separation: Resonance-enhanced multiphoton charge transfer in actinide complexes2022
- Author(s)
  Matsuda Shohei、Yokoyama Keiichi、Yaita Tsuyoshi、Kobayashi Tohru、Kaneta Yui、Simonnet Marie、Sekiguchi Tetsuhiro、Honda Mitsunori、Shimojo Kojiro、Doi Reisuke、Nakashima Nobuaki
- Journal Title
  
  Science Advances
  
  Volume: 8 Issue: 20
- DOI
  10.1126/sciadv.abn1991
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-22K04994, KAKENHI-PROJECT-20K19999
[Journal Article] Annealing Effect of Absorbing Property for Cs and CsI in Fullerene Investigated by Synchrotron X-ray Photoelectron Spectroscopy2022
- Author(s)
  Sekiguchi Tetsuhiro、Yokoyama Keiichi、Yaita Tsuyoshi
- Journal Title
  
  e-J. Surf. Sci. Nanotechnol.
  
  Volume: 20 Issue: 3 Pages: 186-195
- DOI
  10.1380/ejssnt.2022-030
- ISSN
  1348-0391
- Year and Date
  2022-07-02
- Language
  English
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-22K04994
[Journal Article] Quantum Optimal Control of Rovibrational Excitations of a Diatomic Alkali Halide: One-Photon vs. Two-Photon Processes2019
- Author(s)
  Kurosaki Yuzuru、Yokoyama Keiichi
- Journal Title
  
  Universe
  
  Volume: 5 Issue: 5 Pages: 109-109
- DOI
  10.3390/universe5050109
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15H02345
[Journal Article] A quasiclassical trajectory calculation to compute the reaction cross section and thermal rate constant for the cesium exchange reaction 133CsI + 135Cs → 133Cs + I135Cs2019
- Author(s)
  Kobayashi Takanori、Matsuoka Leo、Yokoyama Keiichi
- Journal Title
  
  Computational and Theoretical Chemistry
  
  Volume: 1150 Pages: 40-48
- DOI
  10.1016/j.comptc.2019.01.008
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15H02345, KAKENHI-PROJECT-17H04978
[Journal Article] Absorbent property of fullerene for cesium isotope separation investigated using X-ray photoelectron spectroscopy2018
- Author(s)
  Sekiguchi Tetsuhiro、Yokoyama Keiichi、Uozumi Yuki、Yano Masahiro、Asaoka Hidehito、Suzuki Shinichi、Yaita Tsuyoshi
- Journal Title
  
  Progress in Nuclear Science and Technology
  
  Volume: 5 Issue: 0 Pages: 161-164
- DOI
  10.15669/pnst.5.161
- ISSN
  2185-4823
- Year and Date
  2018-11-01
- Language
  English
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15H02345
[Journal Article] Absorbent Property of Fullerene for Cesium Isotope Separation revealed using X-ray Photoelectron Spectroscopy2018
- Author(s)
  Tetsuhiro Sekiguchi, Keiichi Yokoyama, Yuki Uozumi, Masahiro Yano, Hidehito Asaoka, Shinichi Suzuki, and Tsuyoshi Yaita
- Journal Title
  
  Progress in Nuclear Science and Technology
  
  Volume: 印刷中
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15H02345
[Journal Article] Quantum optimal control of the isotope-selective rovibrational excitation of diatomic molecules2017
- Author(s)
  Kurosaki Yuzuru、Yokoyama Keiichi
- Journal Title
  
  Chemical Physics
  
  Volume: 493 Pages: 183-193
- DOI
  10.1016/j.chemphys.2017.07.003
- NAID
  120006876727
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15H02345
[Journal Article] A quasi-classical trajectory calculation for the cesium exchange reaction of CsI(v = 0, j = 0) + Cs → Cs+ICs2017
- Author(s)
  Takanori Kobayashi, Leo Matsuoka, Keiichi Yokoyama
- Journal Title
  
  Journal of Japan Institute of Energy
  
  Volume: 96 Pages: 441-444
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15H02345
[Journal Article] Theoretical study of the adsorption of Cs, Cs+, I, I-, and CsI on the C60 fullerene2016
- Author(s)
  T. Kobayashi, K. Yokoyama
- Journal Title
  
  J. Nucl. Sci. Tech.
  
  Volume: 印刷中 Issue: 10 Pages: 1489-1493
- DOI
  10.1080/00223131.2015.1126206
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-15H02345
[Journal Article] Theoretical study of the Cs isotope exchange reaction of CsI + Cs' --> Cs + Cs'I2015
- Author(s)
  T. Kobayashi, M. Hashimoto, K. Yokoyama
- Journal Title
  
  JAEA-Research
  
  Volume: 2015-014 Pages: 1-7
- Peer Reviewed / Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-15H02345
[Journal Article] An analytic formula to describe transient rotational dynamics ofdiatomic molecules in an optical frequency comb2013
- Author(s)
  A. Ichihara, L. Matsuoka, Y. Kurosaki, K. Yokoyama
- Journal Title
  
  Chinese J. Phys
  
  Volume: (in press)
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20360423
[Journal Article] Physical implementation of quantum cellular automaton in a diatomic molecule2013
- Author(s)
  L. Matsuoka, K. Yokoyama
- Journal Title
  
  J. Compu. Theo. Nanosci.
  
  Volume: 10(in press)
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20360423
[Journal Article] upersonic Li 2 beam source for momentum imaging spectroscopy2012
- Author(s)
  M. Hashimoto, L. Matsuoka, K. Yokoyama
- Journal Title
  
  ibid
  
  Volume: 1465 Pages: 48-52
- DOI
  10.1063/1.4737538
- Data Source
  KAKENHI-PROJECT-20360423
[Journal Article] Construction of narrow-band regenerative amplifier for momentum imaging spectroscopy of lithium dimer2012
- Author(s)
  L. Matsuoka, M. Hashimoto, K. Yokoyama
- Journal Title
  
  ibid
  
  Volume: 1465 Pages: 58-62
- DOI
  10.1063/1.4737540
- Data Source
  KAKENHI-PROJECT-20360423
[Journal Article] Ab initio MRSDCI study on the low-lying electronic states of the lithium chloride molecule (LiCl)2012
- Author(s)
  L. Matsuoka, M. Hashimoto, K. Yokoyama
- Journal Title
  
  Comput. Theo. Chem.
  
  Volume: 999 Pages: 239-245
- DOI
  10.1016/j.comptc.2012.09.007
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20360423
[Journal Article] Designing experiments for demonstration of isotope-selective distribution transfer using terahertz wave2012
- Author(s)
  K. Yokoyama
- Journal Title
  
  AIP Conference Proceedings
  
  Volume: 1465 Pages: 65-68
- DOI
  10.1063/1.4737541
- Data Source
  KAKENHI-PROJECT-20360423
[Journal Article] Ab initio MRSDCI study on the low-lying electronic states of the lithium chloride molecule (LiCl)2012
- Author(s)
  Y. Kurosaki, K. Yokoyama
- Journal Title
  
  J. Chem. Phys.
  
  Volume: 137 Issue: 6 Pages: 64305-64305
- DOI
  10.1063/1.4742059
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20360423
[Journal Article] Theoretical study for laser isotope separation of heavy-element molecules in a thermal distribution2011
- Author(s)
  L. Matsuoka, A. Ichihara, M. Hashimoto, K. Yokoyama
- Journal Title
  
  Proceedings of GLOBAL 2011
  
  Volume: 392063
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20360423
[Journal Article] Narrow-band regenerative amplifier for momentum imaging spectroscopy of molecules2011
- Author(s)
  L. Matsuoka, M. Hashimoto, K. Yokoyama
- Journal Title
  
  Proceedings of IQEC/CLEO Pacific Rim
  
  Pages: 1363-1364
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20360423
[Journal Article] Quantum control study of ultrafast isotope-selective vibrational excitations of the cesium iodide (CsI) molecule2011
- Author(s)
  Y. Kurosaki, K. Yokoyama, A. Yokoyama
- Journal Title
  
  Comp. Theo. Chem.
  
  Volume: 963 Issue: 2-3 Pages: 245-255
- DOI
  10.1016/j.comptc.2010.10.044
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20360423
[Journal Article] Quantum control study of ultrafast isotope-selective vibrational excitations of the cesium iodide (CsI) molecule2011
- Author(s)
  Y.Kurosaki, K.Yokoyama, A.Yokoyama
- Journal Title
  
  Comp.Theo.Chem. 963
  
  Pages: 245-255
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20360423
[Journal Article] Quantum optimal control for the full ensemble of randomly oriented molecules having different field-free Hamiltonians2011
- Author(s)
  Y. Kurosaki, A. Ichihara, K. Yokoyama
- Journal Title
  
  J. Chem. Phys.
  
  Volume: 135 Issue: 5 Pages: 54103-54103
- DOI
  10.1063/1.3618719
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20360423
[Journal Article] Vibration-selective coherent anti-Stokes Raman scattering with linearly chirped white-light pulses2010
- Author(s)
  T.Kasajima, K.Yokoyama, L.Matsuoka, A.Yokoyama
- Journal Title
  
  Chem.Phys.Lett. 485
  
  Pages: 45-48
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20360423
[Journal Article] Quantum control of molecular vibration and rotation toward the isotope separation2010
- Author(s)
  K.Yokoyama, et al.
- Journal Title
  
  Advances in Intense Laser Science & Photonics
  
  Pages: 113-119
- Data Source
  KAKENHI-PROJECT-20360423
[Journal Article] Vibration-selective coherent anti-Stokes Raman scattering with linearly chirped white-light pulses2010
- Author(s)
  T. Kasajima, K. Yokoyama, L. Matsuoka, A. Yokoyama
- Journal Title
  
  Chem. Phys. Lett.
  
  Volume: 485 Issue: 1-3 Pages: 45-48
- DOI
  10.1016/j.cplett.2009.12.032
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20360423
[Journal Article] Quantum control of molecular vibration and rotation toward the isotope separation2010
- Author(s)
  K.Yokoyama, L.Matsuoka, T.Kasajima, M.Tsubouchi, A.Yokoyama
- Journal Title
  
  Advances in Intense Laser Science & Photonics
  
  Pages: 113-119
- Data Source
  KAKENHI-PROJECT-20360423
[Journal Article] Impulsive stimulated Raman transition on the B state of iodine molecules via repulsive states2009
- Author(s)
  L.Matsuoka, K.Yokoyama, A.Yokoyama
- Journal Title
  
  Phys.Rev.A 79
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20360423
[Journal Article] Quantum control study of multilevel effect on ultrafast isotope-selective vibrational excitations2009
- Author(s)
  Y. Kurosaki, K. Yokoyama, A. Yokoyama
- Journal Title
  
  J. Chem. Phys.
  
  Volume: 131 Issue: 14 Pages: 144305-144305
- DOI
  10.1063/1.3245401
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20360423
[Journal Article]2009
- Author(s)
  横山啓一
- Journal Title
  
  光科学研究の最前線2(強光子場科学研究懇談会)
  
  Pages: 125-125
- Data Source
  KAKENHI-PROJECT-20360423
[Journal Article] Multilevel effect on ultrafast isotope-selective vibrational excitations: Quantum optimal control study2009
- Author(s)
  Y. Kurosaki, K. Yokoyama, A. Yokoyama
- Journal Title
  
  J. Mol. Struct.:THEOCHEM
  
  Volume: 913 Issue: 1-3 Pages: 38-42
- DOI
  10.1016/j.theochem.2009.07.020
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20360423
[Journal Article] Impulsive stimulated Raman transition on the B state of iodine molecules via repulsive states2009
- Author(s)
  L. Matsuoka, K. Yokoyama, A. Yokoyama
- Journal Title
  
  Phys. Rev. A
  
  Volume: 79 Issue: 6
- DOI
  10.1103/physreva.79.061404
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20360423
[Patent] 分子の選択的励起方法およびこれを用いた同位体分離方法、同位体分析方法、分子の選択的励起装置、同位体分離装置2012
- Inventor(s)
  横山啓一、松岡雷士、赤木浩、笠嶋辰也、坪内雅明、横山淳
- Industrial Property Rights Holder
  独立行政法人日本原子力研究開発機構
- Acquisition Date
  2012-08-21
- Overseas
- Data Source
  KAKENHI-PROJECT-20360423
[Patent] 分子の選択的励起方法およびこれを用いた同位体分離方法、同位体分析方法、分子の選択的励起装置、同位体分離装置2010
- Inventor(s)
  横山啓一、松岡雷士、赤木浩、笠島辰也、坪内雅明、横山淳
- Industrial Property Rights Holder
  独立行政法人日本原子力研究開発機構
- Filing Date
  2010-09-22
- Overseas
- Data Source
  KAKENHI-PROJECT-20360423
[Patent] 分子の選択的励起方法およびこれを用いた同位体分離方法、同位体分析方法、分子の選択的励起装置、同位体分離装置2010
- Inventor(s)
  横山啓一、松岡雷士、赤木浩、笠島辰也、坪内雅明、横山淳
- Industrial Property Rights Holder
  独立行政法人日本原子力研究開発機構
- Filing Date
  2010-09-22
- Overseas
- Data Source
  KAKENHI-PROJECT-20360423
[Patent] Selective molecular excitation method and isotope separation method using the same, isotope analysis method, selective molecular excitation apparatus and isotope separation apparatus2010
- Inventor(s)
  K. Yokoyama et al.
- Industrial Property Rights Holder
  日本原子力研究開発機構
- Industrial Property Rights Type
  特許
- Filing Date
  2010-09-22
- Acquisition Date
  2012-08-21
- Overseas
- Data Source
  KAKENHI-PROJECT-20360423
[Patent] 分子の選択的励起方法およびこれを用いた同位体分離方法、同位体分析方法、分子の選択的励起装置、同位体分離装置2009
- Inventor(s)
  横山啓一, 他
- Industrial Property Rights Holder
  日本原子力研究開発機構
- Industrial Property Number
  2009-220818
- Filing Date
  2009-09-25
- Data Source
  KAKENHI-PROJECT-20360423
[Patent] 分子の選択的励起方法およびこれを用いた同位体分離方法、同位体分析方法、分子の選択的励起装置、同位体分離装置2009
- Inventor(s)
  横山啓一、松岡雷士、赤木浩、笠島辰也、坪内雅明、横山淳
- Industrial Property Rights Holder
  独立行政法人日本原子力研究開発機構
- Industrial Property Number
  2009-220818
- Filing Date
  2009-09-22
- Data Source
  KAKENHI-PROJECT-20360423
[Patent] 分子の選択的励起方法およびこれを用いた同位体分離方法、同位体分析方法、分子の選択的励起装置、同位体分離装置2009
- Inventor(s)
  横山啓一、松岡雷士、赤木浩、笠嶋辰也、坪内雅明、横山淳
- Industrial Property Rights Holder
  独立行政法人日本原子力研究開発機構
- Industrial Property Number
  2009-220818
- Filing Date
  2009-09-22
- Data Source
  KAKENHI-PROJECT-20360423
[Patent] 分子の選択的励起方法およびこれを用いた同位体分離方法、同位体分析方法、分子の選択的励起装置、同位体分離装置
- Inventor(s)
  横山啓一、松岡雷士、赤木浩、笠嶋辰也、坪内雅明、横山淳
- Industrial Property Rights Holder
  独立行政法人日本原子力研究開発機構
- Patent Publication Number
  2011-067754
- Data Source
  KAKENHI-PROJECT-20360423
[Presentation] Selective Am(III)-(V) oxidation by multiphoton (MP) excitation2022
- Author(s)
  Tsuyoshi YAITA, Shohei Matsuda, Keiichi Yokoyama
- Organizer
  Actnide-XAS-2022
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K23280
[Presentation] 二原子分子の振動回転励起の量子制御:一光子および二光子過程の役割2019
- Author(s)
  黒崎譲、横山啓一
- Organizer
  分子科学討論会
- Data Source
  KAKENHI-PROJECT-15H02345
[Presentation] Eu(III)の f-f 遷移を介する多光子励起による光還元のフルエンス依存性2019
- Author(s)
  松田晶平、中島信昭、横山啓一他4名
- Organizer
  光化学討論会
- Data Source
  KAKENHI-PROJECT-15H02345
[Presentation] 同位体分離実証用光源の開発状況について2019
- Author(s)
  横山啓一
- Organizer
  Workshop on quantum walks at SPring-8
- Data Source
  KAKENHI-PROJECT-15H02345
[Presentation] 光電子分光法を用いた深さ分析による C60炭素固体内部へのCs吸蔵拡散2019
- Author(s)
  関口哲弘、横山啓一他4名
- Organizer
  放射光科学討論会
- Data Source
  KAKENHI-PROJECT-15H02345
[Presentation] OH1を用いたテラヘルツ波発生直後の波形計測2019
- Author(s)
  横山啓一、松田晶平
- Organizer
  第66回応用物理学会春季学術講演会
- Data Source
  KAKENHI-PROJECT-15H02345
[Presentation] 光電子分光法によるCs-135同位体分離回収のためのC60フラーレン吸蔵材料の評価2018
- Author(s)
  関口哲弘, 横山啓一, 魚住雄輝, 矢野雅大, 朝岡秀人, 鈴木伸一, 矢板毅
- Organizer
  第31回日本放射光学会年会
- Data Source
  KAKENHI-PROJECT-15H02345
[Presentation] Laser chemistry for Eu recovery2018
- Author(s)
  Nobuaki Nakashima,Tomoyuki Yatsuhashi,Kenji Sakota,Izumi Iwakura,Keiichi Yokoyama
- Organizer
  日本化学会第９８春季年会(2018)
- Data Source
  KAKENHI-PROJECT-15H02345
[Presentation] アルコール溶液中での多光子励起による Eu3+の光還元反応2018
- Author(s)
  松田晶平、中島信昭、横山啓一、八ッ橋知幸、Haik Chosrowjan、谷口誠治、染川智弘
- Organizer
  2018年光化学討論会
- Data Source
  KAKENHI-PROJECT-15H02345
[Presentation] 二原子分子の同位体選択的振動回転励起の量子最適制御2018
- Author(s)
  黒崎譲、横山啓一
- Organizer
  レーザー学会学術講演会第 38 回年次大会
- Data Source
  KAKENHI-PROJECT-15H02345
[Presentation] 二光子過程を含む同位体選択的振動回転励起の量子制御2018
- Author(s)
  黒崎譲、横山啓一
- Organizer
  第12回分子科学討論会
- Data Source
  KAKENHI-PROJECT-15H02345
[Presentation] Concept of Laser-assisted Separation and Recovery for f-electron elements2017
- Author(s)
  Keiichi Yokoyama, Nobuaki Nakashima, Tsuyoshi Yaita
- Organizer
  Actinide2017
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15H02345
[Presentation] Depth Concentration Profile of Cesium in Fullerene Absorbent Studied by Synchrotron X-Ray Photoelectron Spectroscopy2017
- Author(s)
  Tetsuhiro Sekiguchi, Keiichi Yokoyama, Yuki Uozumi, Masahiro Yano, Hidehito Asaoka, Shinichi Suzuki, and Tsuyoshi Yaita
- Organizer
  The 8-th international symposium on surface science
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15H02345
[Presentation] Evaluation of C60 Thin Film as Selective Absorbent for Cesium Isotope Separation using X-ray Photoelectron Spectroscopy2017
- Author(s)
  T. Sekiguchi, K. Yokoyama, Y. Uozumi, H. Asaoka, M. Yano, T. Yaita
- Organizer
  Symposium on Surface Science and Nanotechnology
- Place of Presentation
  京都市国際交流会館（京都府・京都市）
- Year and Date
  2017-01-24
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15H02345
[Presentation] Absorbent Property of Fullerene for Cesium Isotope Separation revealed using X-ray Photoelectron Spectroscopy2017
- Author(s)
  Tetsuhiro Sekiguchi, Keiichi Yokoyama, Yuki Uozumi, Masahiro Yano, Hidehito Asaoka, Shinichi Suzuki, and Tsuyoshi Yaita
- Organizer
  Actinide2017
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15H02345
[Presentation] 量子ウォークとレーザー同位体分離2017
- Author(s)
  横山啓一
- Organizer
  九州大学マス・フォア・インダストリ研究所公開講演会
- Invited
- Data Source
  KAKENHI-PROJECT-15H02345
[Presentation] 放射性セシウムの同位体分離技術開発にむけて2017
- Author(s)
  横山啓一
- Organizer
  広島大学大学院理学研究科公開講演会
- Invited
- Data Source
  KAKENHI-PROJECT-15H02345
[Presentation] Quantum optimal control of isotope-selective rovibrational excitation of diatomic molecules2017
- Author(s)
  Yuzuru Kurosaki, Keiichi Yokoyama
- Organizer
  第11回分子科学討論会
- Data Source
  KAKENHI-PROJECT-15H02345
[Presentation] 分子回転の光励起と量子ウォーク2016
- Author(s)
  横山啓一
- Organizer
  数学協働プログラムワークショップ「量子系の数理と物質制御への展開II」
- Place of Presentation
  横浜国立大学（神奈川県・横浜市）
- Year and Date
  2016-10-20
- Data Source
  KAKENHI-PROJECT-15H02345
[Presentation] A quasi-classical trajectory calculation for the cesium exchange reaction of CsI(v = 0, j = 0) + Cs → Cs+ICs2016
- Author(s)
  Takanori Kobayashi, Leo Matsuoka, Keiichi Yokoyama
- Organizer
  The 5th Joint Conference on Renewable Energy and Nanotechnology
- Place of Presentation
  Kuala Lumpur, Malaysia
- Year and Date
  2016-12-07
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15H02345
[Presentation] Nonlinear optical response of molecules rotationally excited by impulsive Raman scattering2016
- Author(s)
  Keiichi Yokoyama, Takanori Kobayashi
- Organizer
  32nd Symposium on Chemical Kinetics and Dynamics
- Place of Presentation
  大宮ソニックシティ（埼玉県・大宮市）
- Year and Date
  2016-06-01
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15H02345
[Presentation] 同位体選択的振動回転励起の量子制御2015
- Author(s)
  黒崎　謙、横山啓一
- Organizer
  第9回分子科学討論会
- Place of Presentation
  東京工業大学（東京都・目黒区）
- Year and Date
  2015-09-16
- Data Source
  KAKENHI-PROJECT-15H02345
[Presentation] C60フラーレンのセシウム吸着材としての可能性の理論計算2015
- Author(s)
  小林孝徳、横山啓一
- Organizer
  第18回理論化学討論会
- Place of Presentation
  大阪大学（大阪府・豊中市）
- Year and Date
  2015-05-20
- Data Source
  KAKENHI-PROJECT-15H02345
[Presentation] An Industrial application of quantum walk; Isotope separation of radioactive waste2015
- Author(s)
  K. Yokoyama
- Organizer
  Workshop of Quantum Simulation and Quantum Walks 2015
- Place of Presentation
  横浜国立大学（神奈川県・横浜市）
- Year and Date
  2015-11-16
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15H02345
[Presentation] Theoretical Study on isotopeselective excitation of diatomic molecules by a terahertz frequency comb2013
- Author(s)
  A. Ichihara, L. Matsuoka, Y. Kurosaki, K. Yokoyama
- Organizer
  CLEO-PR2013
- Place of Presentation
  Kyoto
- Data Source
  KAKENHI-PROJECT-20360423
[Presentation] Displacement of rotational-state distribution in diatomic molecules with a train of femtosecond laser pulses2013
- Author(s)
  F. Yoshida, T. Kasajima, L. Matsuoka, K. Yokoyama
- Organizer
  CLEO-PR2013
- Place of Presentation
  Kyoto
- Data Source
  KAKENHI-PROJECT-20360423
[Presentation] Spectral Measurement of Picosecond Optical Pulses by Optogalvanic Spectroscopy2013
- Author(s)
  L. Matsuoka, K. Ogawa, K. Yokoyama
- Organizer
  CLEO-PR2013
- Place of Presentation
  Kyoto
- Data Source
  KAKENHI-PROJECT-20360423
[Presentation] ピコ秒テラヘルツ波パルスによる同位体選択原理2013
- Author(s)
  横山啓一
- Organizer
  第19回FEL とHigh-Power Radiation 研究会
- Place of Presentation
  木津
- Data Source
  KAKENHI-PROJECT-20360423
[Presentation] テラヘルツ波による同位体選択原理2011
- Author(s)
  横山啓一, 他
- Organizer
  第4回文部科学省最先端の光の創成を目指したネットワーク研究拠点プログラムシンポジウム
- Place of Presentation
  名古屋
- Year and Date
  2011-11-14
- Data Source
  KAKENHI-PROJECT-20360423
[Presentation] QUADRA レーザーを用いた量子制御による新たな同位体分離技術への挑戦2011
- Author(s)
  横山啓一
- Organizer
  レーザー学会学術講演会第31回年次大会(招待講演)
- Place of Presentation
  調布
- Year and Date
  2011-01-10
- Data Source
  KAKENHI-PROJECT-20360423
[Presentation] Designing experiments for demonstration of isotope-selective distribution transfer using terahertz wave2011
- Author(s)
  K.Yokoyama
- Organizer
  第12回光量子科学シンポジウム
- Place of Presentation
  京都
- Year and Date
  2011-05-30
- Data Source
  KAKENHI-PROJECT-20360423
[Presentation] QUADRA レーザーを用いた量子制御による新たな同位体分離技術への挑戦2011
- Author(s)
  横山啓一
- Organizer
  レーザー学会学術講演会第31回年次大会
- Place of Presentation
  調布
- Year and Date
  2011-01-10
- Data Source
  KAKENHI-PROJECT-20360423
[Presentation] QUADRAレーザーを用いた量子制御による新たな同位体分離技術への挑戦2011
- Author(s)
  横山啓一
- Organizer
  レーザー学会学術講演会第31回年次大会
- Place of Presentation
  調布
- Year and Date
  2011-01-10
- Data Source
  KAKENHI-PROJECT-20360423
[Presentation] テラヘルツ波による同位体分離の高効率化に関する数値計算2011
- Author(s)
  横山啓一, 他
- Organizer
  第5回分子科学討論会2011
- Place of Presentation
  札幌
- Year and Date
  2011-09-23
- Data Source
  KAKENHI-PROJECT-20360423
[Presentation] A new scheme for laser isotope separation applicable to heavy elements2011
- Author(s)
  K.Yokoyama, et al.
- Organizer
  Actinide XAS 2011
- Place of Presentation
  播磨
- Year and Date
  2011-03-02
- Data Source
  KAKENHI-PROJECT-20360423
[Presentation] 同位体分離を目指した量子制御技術:原子力の課題に挑戦する分子科学2010
- Author(s)
  横山啓一
- Organizer
  原子衝突研究協会第35回年会
- Place of Presentation
  奈良
- Year and Date
  2010-08-09
- Data Source
  KAKENHI-PROJECT-20360423
[Presentation] 同位体選択的振動励起における分子配向効果に関する理論的研究2010
- Author(s)
  黒崎譲、市原晃、横山啓一
- Organizer
  第4回分子科学討論会
- Place of Presentation
  大阪
- Year and Date
  2010-09-14
- Data Source
  KAKENHI-PROJECT-20360423
[Presentation] Numerical study on quantum walks implemented on the cascade rotational transitions in a diatomic molecule2010
- Author(s)
  L.Matsuoka, T.Kasajima, M.Hashimoto, K.Yokoyama
- Organizer
  9th Asian international seminar on atomic and molecular physics
- Place of Presentation
  ソウル
- Year and Date
  2010-10-04
- Data Source
  KAKENHI-PROJECT-20360423
[Presentation] Numerical study on quantum walks implemented on the cascade rotational transitions in a diatomic molecule2010
- Author(s)
  L. Matsuoka, T. Kasajima, M. Hashimoto, K. Yokoyama
- Organizer
  9th Asian international seminar on atomic and molecular physics
- Place of Presentation
  ソウル、韓国
- Year and Date
  2010-10-04
- Data Source
  KAKENHI-PROJECT-20360423
[Presentation] 同位体分離を目指した量子制御技術:原子力の課題に挑戦する分子科学2010
- Author(s)
  横山啓一
- Organizer
  原子衝突研究協会第35回年会(特別講演)
- Place of Presentation
  奈良
- Year and Date
  2010-08-09
- Data Source
  KAKENHI-PROJECT-20360423
[Presentation] 二原子分子の純回転遷移を利用したカスケード励起の理論的研究2010
- Author(s)
  横山啓一, 他
- Organizer
  第26回化学反応討論会
- Place of Presentation
  東広島
- Year and Date
  2010-06-04
- Data Source
  KAKENHI-PROJECT-20360423
[Presentation] Studies for isotope separation of radioactive waste2010
- Author(s)
  K.Yokoyama, et al.
- Organizer
  6th Asian Symposium on Intense Laser Science
- Place of Presentation
  北京(中国)
- Year and Date
  2010-10-15
- Data Source
  KAKENHI-PROJECT-20360423
[Presentation] 同位体分離を目指した量子制御技術原子力の課題に挑戦する分子科学2010
- Author(s)
  横山啓一
- Organizer
  原子衝突研究協会第35回年会
- Place of Presentation
  奈良
- Year and Date
  2010-08-09
- Data Source
  KAKENHI-PROJECT-20360423
[Presentation] Quantum control of molecular vibration and rotation toward the isotope separation2009
- Author(s)
  K.Yokoyama, et al.
- Organizer
  The 5^<th> Asian Symposium on Intense Laser Science
- Place of Presentation
  Hanoi, Vietnum
- Year and Date
  2009-12-04
- Data Source
  KAKENHI-PROJECT-20360423
[Presentation] Studies toward the Isotope Separation of Radioactive Waste Using Quantum Control2008
- Author(s)
  K. Yokoyama, Y. Kurosaki, L. Matsuoka, A. Yokoyama
- Organizer
  The 8th international symposium on ultrafast intense laser science
- Place of Presentation
  京都
- Year and Date
  2008-11-26
- Data Source
  KAKENHI-PROJECT-20360423
[Presentation] Impulsive Raman transition, dissociation, and ionization on the B State of iodine molecules in an intense laser field2008
- Author(s)
  L. Matsuoka, K. Yokoyama, A. Yokoyama
- Organizer
  The 8th international symposium on ultrafast intense laser science
- Place of Presentation
  京都
- Year and Date
  2008-11-26
- Data Source
  KAKENHI-PROJECT-20360423
[Presentation] I2分子B状態における共鳴誘導インパルシブラマン遷移2008
- Author(s)
  松岡雷士, 横山啓一, 笠嶋辰也, 横山淳
- Organizer
  第33回原子衝突研究会
- Place of Presentation
  札幌
- Data Source
  KAKENHI-PROJECT-20360423
[Presentation] フェムト秒レーザーによるI2分子内部状態分布変化の研究2008
- Author(s)
  松岡雷士, 横山啓一
- Organizer
  第24回化学反応討論会
- Place of Presentation
  札幌
- Data Source
  KAKENHI-PROJECT-20360423
[Presentation] Basic Studies for New Isotope Separation and Solvent Extraction .Contribution from the Photon Science-2008
- Author(s)
  K. Yokoyama, T. Yaita, T. Tajima
- Organizer
  2nd International Science and Technology Forum on Protected Plutonium Utilization for Peace and Sustainable Prosperity
- Place of Presentation
  Tokyo
- Data Source
  KAKENHI-PROJECT-20360423
[Presentation] フェムト秒レーザーによって誘起されるヨウ素分子のインパルシブラマン遷移とその競合過程2008
- Author(s)
  松岡雷士, 横山啓一, 横山淳
- Organizer
  第2回分子科学討論会
- Place of Presentation
  福岡
- Data Source
  KAKENHI-PROJECT-20360423
[Presentation] An experimental study for vibrational de-excitation of molecules via impulsive Raman transit2008
- Author(s)
  L. Matsuoka, K. Yokoyama, A. Yokoyama
- Organizer
  第8回エクストリームフォトニクス研究会
- Place of Presentation
  蒲郡
- Data Source
  KAKENHI-PROJECT-20360423
[Presentation] Displacement of rotational-state distribution by a train of femtosecond laser pulses
- Author(s)
  K. Yokoyama
- Organizer
  28th Symposium on Chemical Kinetics and Dynamics
- Place of Presentation
  九州大学（福岡県春日市）
- Data Source
  KAKENHI-PROJECT-20360423
[Presentation] Displacement of rotational state distribution by a train of femtoseconds laser pulses
- Author(s)
  K. Yokoyama
- Organizer
  13th Advanced Photon Research Symposium
- Place of Presentation
  日本原子力研究開発機構（京都府木津川市）
- Data Source
  KAKENHI-PROJECT-20360423
[Presentation] 光パルス列による窒素分子回転状態分布の移動
- Author(s)
  横山啓一
- Organizer
  第５回文部科学省最先端の光の創成を目指したネットワーク研究拠点プログラムシンポジウム
- Place of Presentation
  日本科学未来館（東京都）
- Data Source
  KAKENHI-PROJECT-20360423
[Presentation] ピコ秒テラヘルツパルスによる同位体選択原理
- Author(s)
  横山啓一
- Organizer
  第19回FELとHigh-Power Radiation研究会
- Place of Presentation
  日本原子力研究開発機構（京都府木津川市）
- Invited
- Data Source
  KAKENHI-PROJECT-20360423
[]

1. KUROSAKI Yuzuru (60370392)

# of Collaborated Projects: 2 results

# of Collaborated Products: 17 results
2. 関口哲弘 (20373235)

# of Collaborated Projects: 2 results

# of Collaborated Products: 7 results
3. 矢板毅 (40370481)

# of Collaborated Projects: 2 results

# of Collaborated Products: 7 results
4. ICHIHARA Akira (60354784)

# of Collaborated Projects: 1 results

# of Collaborated Products: 5 results
5. MATSUOKA Leo (50455276)

# of Collaborated Projects: 1 results

# of Collaborated Products: 24 results
6. KASAJIMA Tatsuya (10448045)

# of Collaborated Projects: 1 results

# of Collaborated Products: 8 results
7. 山川考一 (40360408)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
8. 永島圭介 (60344438)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
9. 橋本雅史 (80354819)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
10. 小林徹 (40552302)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
11. 下条晃司郎 (50414587)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
12. 松田晶平 (00824591)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
13. 八ッ橋知幸

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
14. 山口瑛子

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results

Yokoyama Keiichi 横山 啓一

YOKOYAMA Keiichi 横山 啓一

横山 啓一 ヨコヤマ ケイイチ

Research Projects

Research Products

Co-Researchers

量子ウォークによる同位体分離の原理的研究Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Multiphoton Excitation Phenomena for Trans-Plutonium Elements and Challenge to Separation for Waste Zero-Emission

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Study on isotope separation based on quantum diffusionPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Study on intra-molecular cascade isotope separationPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

中赤外フェムト秒パルスの波形整形と量子制御への応用Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

[Book] 量子ウォークの新展開第12章2019

Author(s)

Total Pages

Publisher

ISBN

Data Source

[Book] NSAコメンタリーシリーズNo.22 「放射性廃棄物減容化・有 害度低減の技術開発 -- 核種分離・転換」第5章第2節2016

Author(s)

Total Pages

Publisher

Data Source

[Book] Quantum control of molecular vibration and rotation toward the isotope separation, Advances in Intense Laser Science & Photonics2010

Author(s)

Publisher

Data Source

[Book] 使用済み核燃料のレーザー同位体分離 光科学研究の最前線 22009

Author(s)

Total Pages

Publisher

Data Source

[Journal Article] Molecular geochemistry of radium: A key to understanding cation adsorption reaction on clay minerals2024

Author(s)

Journal Title

DOI

Data Source

[Journal Article] 高レベル放射性廃液中の元素を光で選別2023

Author(s)

Journal Title

Data Source

[Journal Article] Laser-fluence dependence of resonance-enhanced multiphoton reduction of trivalent europium2022

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Marking actinides for separation: Resonance-enhanced multiphoton charge transfer in actinide complexes2022

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Annealing Effect of Absorbing Property for Cs and CsI in Fullerene Investigated by Synchrotron X-ray Photoelectron Spectroscopy2022

Author(s)

Journal Title

DOI

ISSN

Yokoyama Keiichi 横山啓一

YOKOYAMA Keiichi 横山啓一

横山啓一ヨコヤマケイイチ

[Book] NSAコメンタリーシリーズNo.22　「放射性廃棄物減容化・有害度低減の技術開発 --　核種分離・転換」第5章第2節2016

[Book] 使用済み核燃料のレーザー同位体分離光科学研究の最前線 22009