LASER-INDUCED IMPEDANCE CHANGES IN PULSED HOLLOW-CATHODE LAMPS

被引：10

作者：

BEENEN, GJ

LESSARD, BP

PIEPMEIER, EH

机构：

[1] Department of Chemistry, Oregon State University, Corvallis

来源：

ANALYTICAL CHEMISTRY | 1979年 / 51卷 / 11期

关键词：

D O I：

10.1021/ac50047a031

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A pulsed laser tuned to atomic and ionic transitions induced a change in the impedance of hollow cathode lamps operated in a dc mode or a pulsed mode. The induced signal, observed as a change in lamp voltage, was increased by factors from 1.7 to 650 when the lamp was operated in the pulsed mode. Since sputtering is increased in the pulsed mode, the greatest increase in signal was observed for atoms and ions of cathode material. Spectral line broadening due to laser induced saturation was greater in the dc mode. The transient behavior of the laser-induced Impedance changes is discussed. © 1979, American Chemical Society. All rights reserved.

引用

页码：1721 / 1724

页数：4

共 9 条

[1] CHARACTERISTICS OF AN OPTO-GALVANIC EFFECT IN CESIUM AND OTHER GAS-DISCHARGE PLASMAS [J].