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Title: Frequency-domain interpretation of the plateaus in laser-assisted recombination and high-order harmonic generation

Journal Article · · Physical Review. A
; ; ; ;  [1]
  1. Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, (China)

The plateaus in laser-assisted recombination and high-order harmonic generation are investigated in the frequency domain. It is found that the probability amplitude of finding an electron with a given energy is given by a generalized Bessel function, which can be represented as a coherent superposition of contributions from a few electronic quantum trajectories. This concept is illustrated by comparing the spectral density of the electron with the laser-assisted recombination spectrum. On the other hand, the plateau of high-order harmonic generation reflects the spectral density of the electron at the location of the nucleus after above-threshold ionization.

OSTI ID:
20640212
Journal Information:
Physical Review. A, Vol. 68, Issue 3; Other Information: DOI: 10.1103/PhysRevA.68.033411; (c) 2003 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
Country of Publication:
United States
Language:
English