Open AccessInvestigation of the high harmonic generation and ionization of atoms with long-range and short-range potentials in intense laser fields
Author(s) -
Peng-Cheng Li,
Xiaoxin Zhou,
Chenzhong Dong,
Zhao Song-feng
Publication year - 2004
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.53.750
Subject(s) - ionization , atomic physics , range (aeronautics) , high harmonic generation , laser , excited state , spectral line , atom (system on chip) , harmonic , tunnel ionization , physics , ionization energy , materials science , ion , optics , quantum mechanics , computer science , composite material , embedded system
By using numerical solutions of the time-dependent Schrdinger equation for a one-dimensional atom in intense laser fields, We investigate the high harmonic generation and ionization of the long-range and short-range potential atoms. It is found that the intensities of high harmonic generation for both cases are similar, but the short-range potential atom does not radiate the low-order harmonic spectra, and the ionization probabilities of the long-range and short-range potential atoms as functions of the laser intensity are obviously different. Our results show that the excited states of the atom play an important role in the low-order harmonic spectra and ionization probabilities.