Electronic and nuclear responses of fixed-in-space H2S to ultrashort intense laser fields.
Electronic and nuclear responses of fixed-in-space H2S to ultrashort intense laser fields.
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DOI：
10.1103/physrevlett.97.243002
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发表时间：
2006-12
影响因子：
8.6
通讯作者：
A. Hishikawa;E. Takahashi;A. Matsuda
中科院分区：
文献类型：
--
作者：
A. Hishikawa;E. Takahashi;A. Matsuda
利用三个碎片离子的符合动量成像研究了H_2S（H_2S_3 ~+->H ~+ +S ~+ + H ~+）在超短强激光场中的库仑爆炸动力学。根据分子框架中激光偏振方向ε的不同，可以识别出不同的电子和核响应。这种依赖性可以用H_2S的电荷转移态与电子基态耦合的电子特性和成键特性来解释。
The Coulomb explosion dynamics of H2S, H2S3+-->H+ +S+ + H+, in ultrashort intense laser fields (12 fs, approximately 2 x 10(14) W/cm2) is studied by the coincidence momentum imaging of the three fragment ions. Different electronic and nuclear responses are identified depending on the direction of laser polarization epsilon in the molecular frame. The dependence can be interpreted in terms of the electronic and bonding characters of charge transfer states of H2S coupled to the electronic ground state.