Rchr
J-GLOBAL ID:201301039019067674
Update date: Feb. 01, 2024
Koichi Yamakawa
ヤマカワ コウイチ | Koichi Yamakawa
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Affiliation and department:
Japan Atomic Energy Agency
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Homepage URL (1):
http://kaken.nii.ac.jp/d/r/40360408.ja.html
Research field (2):
Optical engineering and photonics
, Material fabrication and microstructure control
Research keywords (29):
光パラメトリックチャープパルス増幅法
, 光源技術
, 応用光学
, 波長変換
, 量子光工学
, 光パラメトリックチャープパルス増幅
, スーパーコンテニューム
, 高性能レーザー
, 量子制御
, 放射線、X線、粒子線
, 航跡場
, エキシマ
, 真空紫外光
, 差周波混合
, 高強度レーザー
, 最適制御
, X線発生
, 高次高調波
, 超短パルスレーザー
, 高強度場科学
, 超微細加工
, フェムト秒レーザー
, 電子発生
, 相対論工学
, 真空紫外
, 非同軸位相整合
, 中赤外フェムト秒パルス
, 放電励起
, 選択励起
Research theme for competitive and other funds (2):
2011 - 2013 Development of a compact and monolitic, optical parametric chirped-pulse amplifier
2008 - 2010 Innovation of high-intensity, tunable ultrashort pulse amplification technology toward controlling chemical reaction
Papers (10):
Tadashi Togashi, Eiji J. Takahashi, Katsumi Midorikawa, Makoto Aoyama, Koichi Yamakawa, Takahiro Sato, Atsushi Iwasaki, Shigeki Owada, Tomoya Okino, Kaoru Yamanouchi, et al. Extreme ultraviolet free electron laser seeded with high-order harmonic of Ti:sapphire laser. OPTICS EXPRESS. 2011. 19. 1. 317-324
Timothy C. Berkelbach, James Colgan, Joseph Abdallah Jr., Anatoly Ya. Faenov, Tatiana A. Pikuz, Yuji Fukuda, Koichi Yamakawa. Modeling energy dependence of the inner-shell x-ray emission produced by femtosecond-pulse laser irradiation of xenon clusters. Physical Review E - Statistical, Nonlinear, and Soft Matter Physics. 2009. 79. 1. 016407
Yutaka Akahane, Makoto Aoyama, Akira Sugiyama, Ryouichi Kubo, Kanade Ogawa, Koichi Tsuji, Koichi Yamakawal. High-energy diode-pumped picosecond regenerative amplification at 999 nm in wavelength with a cryogenically cooled Yb : LuILiF4 crystal. OPTICS LETTERS. 2008. 33. 5. 494-496
Tetsuo Harimoto, Makoto Aoyama, Koichi Yamakawa. Numerical simulation of self-compressed second-harmonic generation in type II potassium dihydrogen phosphate with a time predelay for Yb-doped solid-state lasers. OPTICS EXPRESS. 2007. 15. 26. 17529-17535
Tetsuo Harimoto, Koichi Yamakawa. Self compression of Yb-doped solid-state lasers by combination of self-phase modulation and group-velocity dispersion in KDP crystal. OPTICS EXPRESS. 2007. 15. 23. 15438-15443
more...
MISC (213):
T. Togashi, E. J. Takahashi, K. Midorikawa, M. Aoyama, K. Yamakawa, T. Sato, A. Iwasaki, S. Owada, K. Yamanouchi, T. Hara, et al. Extreme ultraviolet free electron laser seeded by high-order harmonic. RADIATION PHYSICS AND CHEMISTRY. 2013. 93. 25-32
赤羽温, 小川奏, 山川考一. 低温冷却型Yb:YLFチャープパルス再生増幅レーザーの開発. 日本原子力研究開発機構JAEA-Conf(Web). 2013. 2013-001. WEB ONLY 4.21
T. Sato, A. Iwasaki, S. Owada, K. Yamanouchi, E. J. Takahashi, K. Midorikawa, M. Aoyama, K. Yamakawa, T. Togashi, K. Fukami, et al. Full-coherent free electron laser seeded by 13th-and 15th-order harmonics of near-infrared femtosecond laser pulses. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS. 2013. 46. 16. 164006 1-6
IWASAKI A, OWADA S, OGAMI S, SATO T, TOGASHI T, TAKAHASHI E. J, MIDORIKAWA K, AOYAMA M, YAMAKAWA K, MATSUBARA S, et al. Full-coherent free electron laser seeded by high-order harmonics of near-infrared femtosecond laser. 化学反応討論会講演要旨集. 2013. 29th. 50-51
岩崎純史, 大和田成起, 大神征爾, 佐藤尭洋, 富樫格, 高橋栄治, 緑川克美, 青山誠, 山川考一, 松原伸一, et al. レーザー高次高調波をシードしたEUV領域の高強度FELパルスによるヘリウム原子の多光子イオン化の観測. 日本化学会講演予稿集. 2013. 93rd. 2. 514
more...
Patents (10):
レーザー装置及びレーザー増幅方法
レーザー光の波面の測定法
レーザー光のコントラスト向上法及びレーザー発生装置
固体レーザー装置
固体レーザー増幅器
more...
Work history (1):
2008 - 2011 Japan Atomic Energy Agency
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