Phase-matched frequency conversion in ionizing atomic gases

被引：13
|
作者：
Kan, C
Capjack, CE
Rankin, R
Brabec, T
Burnett, NH
机构：
[1] NATL RES COUNCIL CANADA, STEACIE INST, OTTAWA, ON K1A 0R6, CANADA
[2] VIENNA TECH UNIV, QUANTENELEKTR & LASERTECH ABT, A-1040 VIENNA, AUSTRIA
来源：
PHYSICAL REVIEW A | 1996年 / 54卷 / 02期
关键词：
D O I：
10.1103/PhysRevA.54.R1026
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We solve the one-dimensional wave equation for high-order mixing of the type omega(h)=q omega(0) -l omega(c)(q much greater than l > = 1) using a Keldysh-type model to describe the high-field atomic nonlinear susceptibility. When omega(c) is selected to give static phase matching, we show that the conversion efficiency of the mixed field can be increased by about an order of magnitude compared to non-phase-matched high-order harmonic generation but that fundamental limitations are introduced by axial electron-density gradients.
引用
收藏
页码：R1026 / R1029
页数：4
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