RELAXATION-OSCILLATOR DETECTION OF OPTOGALVANIC SPECTRA

被引：12

作者：

YAN, GY

FUJII, KI

SCHAWLOW, AL

机构：

[1] Department of Physics, Stanford University, Stanford, CA

[2] Department of Electrical Engineering, Ibaraki University, Hitachi-shi, Ibaraki

来源：

OPTICS LETTERS | 1990年 / 15卷 / 02期

关键词：

D O I：

10.1364/OL.15.000142

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A neon bulb used in a relaxation oscillator is a sensitive detector for observing optogalvanic spectra of neon. A few percent change in the oscillation frequency was observed with resonant irradiation of tenths of microwatts for some neon lines. The percent change is greater than the corresponding current change in an ordinary optogalvanic detection by 2 orders of magnitude. The new technique, not requiring a lock-in amplifier and a special sample cell, probably provides the simplest and the cheapest method for calibrating wavelengths. © 1990 Optical Society of America.

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页码：142 / 144

页数：3

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