Chin. Phys. Lett.  2010, Vol. 27 Issue (9): 093301    DOI: 10.1088/0256-307X/27/9/093301
ATOMIC AND MOLECULAR PHYSICS |
Dynamics of H2 in Intense Femtosecond Laser Field

ZHU Jing-Yi1, LIU Ben-Kang1,2, WANG Yan-Qiu1, HE Hai-Xiang1,2, WANG Li1

1State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Dalian 116023 2Graduate School of the Chinese Academy of Sciences, Beijing 100049
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ZHU Jing-Yi, LIU Ben-Kang, WANG Yan-Qiu et al  2010 Chin. Phys. Lett. 27 093301
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Abstract

Fragmentation of H2 in femtosecond laser field is studied by using velocity map ion imaging method and 70 fs laser at 405 nm and 810 nm from 0.3 to 3.0×1014 W/cm2. Angular distributions from Coulomb explosion are independent of the laser wavelengths and intensities, which means the explosion starts from the same electronic state. Angular distributions from dissociation channels in the 810 nm laser field broaden with the laser intensity. Lobe structures in angular distributions from Coulomb explosion and above threshold dissociation channels are reported. Fine structures in the distribution of internuclear distances are observed.

Keywords: 33.20.Xx      42.30.Va      33.80.Wz     
Received: 24 March 2010      Published: 25 August 2010
PACS:  33.20.Xx (Spectra induced by strong-field or attosecond laser irradiation)  
  42.30.Va (Image forming and processing)  
  33.80.Wz (Other multiphoton processes)  
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https://cpl.iphy.ac.cn/10.1088/0256-307X/27/9/093301       OR      https://cpl.iphy.ac.cn/Y2010/V27/I9/093301
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ZHU Jing-Yi
LIU Ben-Kang
WANG Yan-Qiu
HE Hai-Xiang
WANG Li
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