The Orbital-Resolved Dissociative Ionization of the Molecular IBr in a Near-Infrared Femtosecond Laser Field

被引：0
作者：
Liu, Botong [1 ]
Li, Zhipeng [2 ]
机构：
[1] Yancheng Inst Technol, Sch Informat Engn, Yancheng 224051, Peoples R China
[2] East China Normal Univ, Sch Phys & Elect Sci, State Key Lab Precis Spect, Shanghai 200062, Peoples R China
来源：
PHOTONICS | 2024年 / 11卷 / 09期
关键词：
dissociative ionization; femtosecond laser; multi-orbital effect; HARMONIC-GENERATION; PHOTODISSOCIATION; SPECTROSCOPY; NM;
D O I：
10.3390/photonics11090810
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The dissociative ionization of molecular IBr in a near-infrared femtosecond laser field was investigated through the utilization of the DC-sliced ion imaging technique. Two pathways, denoted as (1, 0)a and (1, 0)b, were observed in the dissociation process of IBr+ into an I+ ion and Br atom. The distinct angular distributions observed in these pathways were found to be a result of the removal of electrons from different molecular orbitals. Specifically, in pathway (1, 0)a, the electron was stripped from HOMO and HOMO-1, while in pathway (1, 0)b, the electron was removed from HOMO-2. The ultrafast dynamical processes of molecules influenced by intense femtosecond laser fields were investigated through an analysis of the angular distribution characteristics of fragment ions in conjunction with the spatial properties of molecular orbitals.
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页数：9
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