HARMONIC-GENERATION BY AN INTENSE LASER-PULSE IN NEUTRAL AND IONIZED-GASES

被引：82

作者：

LIU, X ^{[1
]}

UMSTADTER, D ^{[1
]}

ESAREY, E ^{[1
]}

TING, A ^{[1
]}

机构：

[1] USN,RES LAB,BEAM PHYS BRANCH,WASHINGTON,DC 20375

来源：

IEEE TRANSACTIONS ON PLASMA SCIENCE | 1993年 / 21卷 / 01期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1109/27.221106

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Reported are the results of a harmonic generation experiment in a simple gas (hydrogen) using 1-ps, 1-mum laser pulses with a range of intensities extending from below to far above the laser ionization saturation threshold. The scaling with intensity above saturation of the third harmonic generated by a single laser-pulse in a filled gas cell is observed to not fit with a simple model that takes into consideration volume ionization effects alone. In another experiment, a pump-probe type, an upper limit on the conversion efficiency of third harmonic generation in a preformed plasma is determined. It is found to be in agreement with the efficiency predicted by a relativistic harmonic generation theory.

引用

页码：90 / 94

页数：5

共 22 条

[1]

AUGST S, 1990, P SOC PHOTO-OPT INS, V1229, P152, DOI 10.1117/12.18671

[2] OPTICAL 2ND-HARMONIC GENERATION IN ATOMIC VAPORS WITH FOCUSED BEAMS [J].