Angular distributions of CH3I fragment ions under the irradiation of a single pulse and trains of ultrashort laser pulses

Song Yao-Dong; Chen Zhou; Sun Chang-Kai; Hu Zhan

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Angular distributions of CH3I fragment ions under the irradiation of a single pulse and trains of ultrashort laser pulses

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摘要

The angular distribution of CH3I is investigated experimentally using a single Fourier transform-limited laser pulse and a pulse train,where a 90-fs 800-nm linearly polarized laser field with a moderate intensity of 2.8× 1013 W/cm2 is used.The dynamic alignment is demonstrated in a single pulse experiment.Moreover,a pulse train is used to optimize the molecular alignment,and the alignment degree is almost identical to that with the single pulse.The results are analysed by using chirped femtosecond laser pulses,and it demonstrates that the structure of pulse train rather than its effective duration is crucial to the molecular alignment.

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《中国物理：英文版》 |2013年第1期|208-213|共6页
作者
Song Yao-Dong; Chen Zhou; Sun Chang-Kai; Hu Zhan;
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作者单位

Institute of Atomic and Molecular Physics, Jilin University, Changchun 130021, China;

Institute of Atomic and Molecular Physics, Jilin University, Changchun 130021, China;

Institute of Atomic and Molecular Physics, Jilin University, Changchun 130021, China;

Institute of Atomic and Molecular Physics, Jilin University, Changchun 130021, China;

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Angular distributions of CH3I fragment ions under the irradiation of a single pulse and trains of ultrashort laser pulses

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