| Original Articles |
|
|
|
|
High-Order Harmonic Generation in the Ionization Process |
| CHEN Jing1;CHEN Shi-Gang2;LIU Jie2 |
| 1Institute of Theoretical Physics, Chinese Academy of Science, Beijing 100080
21nstitute of Applied Physics and Computational Mathematics, P.O.Box 8009, Beijing 100088
|
|
| Cite this article: |
|
CHEN Jing, CHEN Shi-Gang, LIU Jie 2000 Chin. Phys. Lett. 17 723-725 |
|
|
|
|
Abstract Based on the nonperturbative quantum electrodynamics scattering theory for multiphoton ionization developed recently, high-order harmonic generated in the ionization process is discussed. The influence of the Coulomb potential is treated as a perturbation in the expansion of the transition matrix. It is deduced that the harmonic photons are emitted in the resonant process during ionization and the width of the harmonic peaks is just the ionization rate of the atom.
|
| Keywords:
32.80.Rm
32.80.-t
03.70.+k
|
|
|
Published: 01 October 2000
|
|
| PACS: |
32.80.Rm
|
(Multiphoton ionization and excitation to highly excited states)
|
| |
32.80.-t
|
(Photoionization and excitation)
|
| |
03.70.+k
|
(Theory of quantized fields)
|
|
|
|
|
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
