The quasi-continuum coherent X-ray radiation from the spectral broadening and splitting of high-order harmonics in ionizing gases

Author

Fangchuan Zhong ; Zhengquan Zhang ; Ruxin Li ; Zhizhan Xu

Author_Institution

Lab. for High Intensity Opt., Chinese Acad. of Sci., Shanghai, China

Volume

1

fYear

2001

fDate

15-19 July 2001

Abstract

Combining the one dimensional propagation equation and the wavelet transform of dipole moment of atoms in an intense laser field, the spectrum of high-order harmonics generated and propagated in an ionizing noble gas has been analyzed. The results show that the spectral lines of the harmonic become broad and then split into peaks when the laser intensity is strong enough to ionize the noble gas, and the harmonic emission therefore become quasicontinuum in the higher order region.

Keywords

X-ray lasers; X-ray optics; X-ray production; inert gases; optical harmonic generation; photoionisation; wavelet transforms; atoms; dipole moment; high-order harmonics; higher order region; intense laser field; ionizing gases; ionizing noble gas; laser intensity; one dimensional propagation equation; quasi-continuum coherent X-ray radiation; quasicontinuum harmonic emission; spectral broadening; spectral lines; spectral splitting; wavelet transform; Atom lasers; Atomic beams; Atomic measurements; Gas lasers; Harmonic analysis; Optical harmonic generation; Optical propagation; Wavelet analysis; Wavelet transforms; X-ray lasers;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 2001. CLEO/Pacific Rim 2001. The 4th Pacific Rim Conference on

Conference_Location

Chiba, Japan

Print_ISBN

0-7803-6738-3

Type

conf

DOI

10.1109/CLEOPR.2001.967734

Filename

967734