Multiorbital effects in strong-field ionization and dissociation of aligned polar molecules CH3I and CH3Br

被引：23

作者：

Luo, Sizuo ^{[1
]}

Zhou, Shushan ^{[1
]}

Hu, Wenhui ^{[1
]}

Li, Xiaokai ^{[1
]}

Ma, Pan ^{[1
]}

Yu, Jiaqi ^{[1
]}

Zhu, Ruihan ^{[2
]}

Wang, Chuncheng ^{[1
]}

Liu, Fuchun ^{[1
]}

Yan, Bing ^{[1
]}

Liu, Aihua ^{[1
]}

Yang, Yujun ^{[1
]}

Guo, Fuming ^{[1
]}

Ding, Dajun ^{[1
]}

机构：

[1] Jilin Univ, Jilin Prov Key Lab Appl Atom & Mol Spect, Inst Atom & Mol Phys, Changchun 130012, Jilin, Peoples R China

[2] Changchun Univ Sci & Technol, Sch Sci, Changchun 130022, Jilin, Peoples R China

来源：

PHYSICAL REVIEW A | 2017年 / 96卷 / 06期

基金：

中国国家自然科学基金;

关键词：

ELECTRONIC-STRUCTURE; LASER; DYNAMICS; ALIGNMENT; OCTOPUS; TOOL;

D O I：

10.1103/PhysRevA.96.063415

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Controlling the molecular axis offers additional ways to study molecular ionization and dissociation in strong laser fields. We measure the ionization and dissociation yields of aligned polar CH3X (X = I, Br) molecules in a linearly polarized femtosecond laser field. The current data show that maximum ionization occurs when the laser polarization is perpendicular to the molecular C-X axis, and dissociation prefers to occur at the laser polarization parallel to the C-X axis. The observed angular distributions suggest that the parent ions are generated by ionization from the HOMO. The angular distribution of fragment ions indicates that dissociation occurs mainly from an ionic excited state produced by ionization from the HOMO-1.

引用

页数：7

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