Offset angles of photocurrents generated in few-cycle circularly polarized laser fields

Offset angles of photocurrents generated in few-cycle circularly polarized laser fields

Photocurrents generated in few-cycle circularly polarized laser fields are investigated by solving the time-dependent Schrödinger equation and by means of classical-trajectory Monte Carlo simulations. After confirming the offset angles of the total final currents and electron spectra to be the same,...

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Veröffentlicht in:Journal of physics. B, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2017-03, Vol.50 (5), p.55602
Hauptverfasser: Liu, Jinlei, Fu, Yongsheng, Chen, Wenbo, Lü, Zhihui, Zhao, Jing, Yuan, Jianmin, Zhao, Zengxiu
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Sprache:eng
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electron dynamics
photoelectron momentum distribution
strong-field ionization
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container_issue 5
container_start_page 55602
container_title Journal of physics. B, Atomic, molecular, and optical physics
container_volume 50
creator Liu, Jinlei
Fu, Yongsheng
Chen, Wenbo
Lü, Zhihui
Zhao, Jing
Yuan, Jianmin
Zhao, Zengxiu
description Photocurrents generated in few-cycle circularly polarized laser fields are investigated by solving the time-dependent Schrödinger equation and by means of classical-trajectory Monte Carlo simulations. After confirming the offset angles of the total final currents and electron spectra to be the same, we illustrate the effects of the Coulomb potential and ground state depletion on the offset angles of the total final current, by analyzing how electrons' trajectories and momenta change with laser intensities. Using various atom systems at different laser wavelengths, we find that the behaviors of currents' offset angles as a function of laser intensities seem to be universal.
doi_str_mv 10.1088/1361-6455/aa575b
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subjects electron dynamics
photoelectron momentum distribution
strong-field ionization
title Offset angles of photocurrents generated in few-cycle circularly polarized laser fields
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