期刊
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
卷 44, 期 3, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0953-4075/44/3/035601
关键词
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资金
- Chemical Sciences, Geosciences and Biosciences Division, Office of Basic Energy Sciences, Office of Science, US Department of Energy
- National Natural Science Foundation of China [11044007]
- Specialized Research Fund for the Doctoral Program of Higher Education of China [20096203110001]
- Foundation of Northwest Normal University [NWNU-KJCXGC-03-70]
In the strong field molecular tunnelling ionization theory (Tong X M 2002 Phys. Rev. A 66 033402), the ionization rate depends on structure parameters of molecules which can be extracted from molecular wavefunctions in the asymptotic region. By using molecular orbitals obtained from standard quantum chemistry packages, we extract these parameters for several selected nonlinear polyatomic molecules. We show that the symmetry properties of the molecular orbital are reflected vividly in the angle-dependent tunnelling ionization rates. The structure parameters for 17 nonlinear molecules have been calculated and tabulated for future applications.
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