INVESTIGATION OF PHOTON-EMISSION SPECTRA OF HYDROGEN USING INTENSE SUBPICOSECOND TI-SAPPHIRE ND-GLASS LASER-PULSES

被引：9

作者：

LIANG, Y

AUGST, S

BEAUDOIN, Y

CHAKER, M

YU, H

BANDRAUK, AD

CHIN, SL

机构：

[1] UNIV LAVAL,DEPT PHYS,QUEBEC CITY,PQ G1K 7P4,CANADA

[2] INST NATL RECH SCI ENERGIE & MAT,VARENNES,PQ J3X 1S2,CANADA

[3] UNIV SHERBROOKE,FAC SCI,CHIM THEOR LAB,SHERBROOKE,PQ J1K 2R1,CANADA

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 1995年 / 28卷 / 16期

关键词：

D O I：

10.1088/0953-4075/28/16/017

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

High-harmonic generation processes have been experimentally investigated in molecular hydrogen gas as both molecular dissociation and ionization occur in the gas. The high harmonics observed in our experiment can be mainly attributed to neutral hydrogen molecules. Besides the harmonic spectra, two strong Lyman lines from the dissociated hydrogen atoms and the emission from the neutral hydrogen molecules are observed. Several possible excitation and dissociation channels of hydrogen molecules are proposed. It is found that resonance effects are important for both high-harmonic generation and molecular dissociation. Theoretical calculations using the time-dependent Hartree-Fock (TDHF) method for H-2 reproduce some of the resonance effects.

引用

页码：3661 / 3674

页数：14