Orientation Dependence of Photoelectron Angular Distribution in Nitrogen Molecule Irradiated by XUV Laser Field

doi:10.1088/0256-307X/33/1/013102

Chin. Phys. Lett.

2016, Vol. 33

Issue (01): 013102 DOI: 10.1088/0256-307X/33/1/013102

ATOMIC AND MOLECULAR PHYSICS

Orientation Dependence of Photoelectron Angular Distribution in Nitrogen Molecule Irradiated by XUV Laser Field

Xiao-Dong Yang^1**, Ming Gao², Yuan Tian¹

¹Department of Optical and Electrical Information, Xi'an University of Technological Information, Xi'an 710200
²College of Optoelectronic engineering, Xi'an Technological University, Xi'an 710021

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Xiao-Dong Yang, Ming Gao, Yuan Tian 2016 Chin. Phys. Lett. 33 013102

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Abstract

We theoretically study the dependence of photoelectron angular distribution on laser polarization direction in nitrogen molecules. The approach is based on the time-dependent density functional theory at the level of local density approximation complemented by self-interaction correction. It is found that photoelectron emission in one photon regime could be considered as a probing tool for the main character of different types of molecular orbitals ($\sigma$ or $\pi$). The pattern of emitted photoelectrons strongly depends on the polarized angle of the laser, for $\sigma$ orbital, the number of photoelectron decreases with increasing the polarized angle, while for $\pi$ orbital, it has the inverse relation to the polarized angle, which reveals the multi-electron effect in molecules. On the other hand, concerning the total photoelectron emission, one should take into account a few occupied orbitals instead of only the outmost one.

Received: 23 June 2015 Published: 29 January 2016

PACS:	31.15.ee	(Time-dependent density functional theory)
	33.80.-b	(Photon interactions with molecules)
	78.20.Bh	(Theory, models, and numerical simulation)

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https://cpl.iphy.ac.cn/10.1088/0256-307X/33/1/013102 OR https://cpl.iphy.ac.cn/Y2016/V33/I01/013102

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