Photoionization in alkali lasers

被引：77

作者：

Knize, R. J. ^{[1
]}

Zhdanov, B. V. ^{[1
]}

Shaffer, M. K. ^{[1
]}

机构：

[1] USAF Acad, Dept Phys, Laser & Opt Res Ctr, Colorado Springs, CO 80840 USA

来源：

OPTICS EXPRESS | 2011年 / 19卷 / 08期

基金：

美国国家科学基金会;

关键词：

ENERGY-POOLING COLLISIONS; TRANSITION-PROBABILITIES; RADIATIVE RECOMBINATION; CS LASER; POTASSIUM; PLASMA; VAPOR; IONIZATION; RUBIDIUM; STATES;

D O I：

10.1364/OE.19.007894

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have calculated photoionization rates in alkali lasers. The photoionization of alkali atoms in the gain medium of alkali lasers can significantly degrade the laser performance by reducing the neutral alkali density and with it the gain. For a ten atmosphere Rb laser and a Cs exciplex laser, the photoionization induced alkali atom loss rates are greater than 10(5) sec(-1). These high loss rates will quickly deplete the neutral alkali density, reducing gain, and may require fast, possibly, supersonic flow rates to sufficiently replenish the neutral medium for CW operation. (C) 2011 Optical Society of America

引用

页码：7894 / 7902

页数：9

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