検索対象:     
報告書番号:
※ 半角英数字
 年 ~ 
 年

Controlling the dissociative ionization of ethanol with 800 and 400 nm two-color femtosecond laser pulses

800及び400nmの2色のフェムト秒レーザーパルスを用いたエタノールの解離性イオン化制御

矢澤 洋紀*; 塩山 正真*; 須田 慶隆*; 山中 美緒*; 神成 文彦*; 板倉 隆二; 山内 薫*

Yazawa, Hiroki*; Shioyama, Tadamasa*; Suda, Yoshitaka*; Yamanaka, Mio*; Kannari, Fumihiko*; Itakura, Ryuji; Yamanouchi, Kaoru*

エタノール分子の時間的に重なった2色の高強度レーザーパルスを照射し、解離性イオン化過程を調べた。C-C結合解離に対するC-O結合解離の比は、2つのパルスの遅延時間の関数として変化し、伸張された400nmのパルスとフーリエ限界近くの800nmパルスを重ねたときに、本来、マイナーなチャンネルであるC-O結合解離の収量が大きく増加することが示された。

Ethanol molecules were irradiated with a pair of temporally overlapping ultrashort intense laser pulses (10$$^{13}$$-10$$^{14}$$ W/cm$$^{2}$$ with different colors of 400 and 800 nm, and the dissociative ionization processes have been investigated. The yield ratio of the C-O bond breaking with respect to the C-C bond breaking was varied in the range of 0.17-0.53 sensitively depending on the delay time between the two laser pulses, and the absolute value of the yield of the C-O bond breaking was found to be increased largely when the Fourier-transform limited 800 nm laser pulse overlaps the stretched 400 nm laser pulse, demonstrating an advantage of the two-color intense laser fields in controlling chemical bond breaking processes.

Access

:

- Accesses

InCites™

:

パーセンタイル:32.99

分野:Chemistry, Physical

Altmetrics

:

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.