Open AccessA scaling law of photoionization in few-cycle regime
Author(s) -
Jingtao Zhang,
Lei Bai,
Shangqing Gong,
Zhizhan Xu,
Dong Guo
Publication year - 2007
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.15.007261
Subject(s) - photoionization , ionization , photoelectric effect , atomic physics , laser , scaling , photoionization mode , scaling law , physics , phase (matter) , kinetic energy , optics , ion , quantum mechanics , geometry , mathematics
In this paper, a scaling law of photoionization of atoms irradiated by intense, few-cycle laser pulses is established. The scaling law sets a relation to the phase-dependent ionization with the kinetic energy of photoelectrons, the duration and peak intensity of short pulses, and the ionization potential of the target atoms. We find that it will be advantageous to manifest the phase-dependent photoionization by choosing the target atoms with larger ionization potential, using laser with smaller carrier-frequency, and increasing the pulse intensity.