Deflections of photoelectron classical trajectories in screened Coulomb potentials of H2+

doi:10.1088/1674-1056/24/11/114208

Abstract The photoelectron momentum distribution of H₂⁺ in circularly polarized laser fields is studied based on classical trajectory calculations. We screen Coulomb potentials at different radii, and trace trajectories of an ensemble of electrons in such screened Coulomb potentials and circularly polarized laser fields. Simulations show that electron trajectories are bent by Coulomb fields, resulting in the laser-intensity-dependent drift of photoelectron momentum distributions in the laser polarization plane. This study intuitively explains how Coulomb potentials modify photoelectron momenta.

Keywords: hydrogen molecular ion photoelectron momentum distribution strong laser field

Received: 11 January 2015
Revised: 25 May 2015
Accepted manuscript online:

PACS:	42.65.Ky	(Frequency conversion; harmonic generation, including higher-order harmonic generation)
	32.80.Rm	(Multiphoton ionization and excitation to highly excited states)
	32.30.Jc	(Visible and ultraviolet spectra)
	34.80.Qb	(Laser-modified scattering)

Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11104180, 11175120, 11121504, and 11322438) and the Fok Ying-Tong Education Foundation for Young Teachers in the Higher Education Institutions of China (Grant No. 131010).

Corresponding Authors: He Feng
E-mail: fhe@sjtu.edu.cn

Cite this article:

Qin Bo-Ya (秦博雅), Wang Pei-Jie (王培杰), He Feng (何峰) Deflections of photoelectron classical trajectories in screened Coulomb potentials of H₂⁺ 2015 Chin. Phys. B 24 114208

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Deflections of photoelectron classical trajectories in screened Coulomb potentials of H2+

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Deflections of photoelectron classical trajectories in screened Coulomb potentials of H₂⁺