DISPERSION-CORRECTED 3-WAVELENGTH LASER HETERODYNE MEASUREMENT OF PLASMA DENSITIES

被引:7
作者
LIU, CS
VERDEYEN, JT
CHERRINGTON, BE
机构
[1] Gaseous Electronics Laboratory, Department of Electrical Engineering, University of Illinois, Urbana
关键词
D O I
10.1063/1.1657031
中图分类号
O59 [应用物理学];
学科分类号
摘要
A three-wavelength laser heterodyne system for plasma diagnostics has been developed using the 0.6328, 1.15, and 3.39 μ transitions in HeSingle Bond signNe. In order to use the 3.39 μ transition, an experimental technique has been developed to measure the dispersion introduced by the lasering atoms under the same conditions that are used for plasma measurements. The dispersion-corrected 3.39 μ data, when combined with the data at 1.15 and 0.6328 μ, give excellent agreement in the measurement of temporally and spatially resolved electron densities and changes in neutral densities in the afterglow of a pulsed argon discharge. The electron-density measurements agree with integrated electron-density measurements made with a microwave cavity operating in the TM010 mode. © 1969 The American Institute of Physics.
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页码:201 / +
页数:1
相关论文
共 23 条
[1]   OPTICAL REFRACTIVITY OF HIGH-TEMPERATURE GASES .1. EFFECTS RESULTING FROM DISSOCIATION OF DIATOMIC GASES [J].
ALPHER, RA ;
WHITE, DR .
PHYSICS OF FLUIDS, 1959, 2 (02) :153-161
[2]   ZEEMAN DISCHARGE TUBE FREQUENCY MONITOR [J].
ARONOWITZ, F ;
GUSTAFSON, HA ;
KILLPATRICK, JE .
APPLIED OPTICS, 1967, 6 (04) :695-+
[3]   MEASUREMENT OF PLASMA DENSITY USING A GAS LASER AS AN INFRARED INTERFEROMETER [J].
ASHBY, DETF ;
JEPHCOTT, DF .
APPLIED PHYSICS LETTERS, 1963, 3 (01) :13-16
[4]   EXTENSION OF PLASMA INTERFEROMETRY TECHNIQUE WITH A HE-NE LASER [J].
BAKER, DA ;
HAMMEL, JE ;
JAHODA, FC .
REVIEW OF SCIENTIFIC INSTRUMENTS, 1965, 36 (03) :395-&
[5]   HOLE BURNING EFFECTS IN A HE-NE OPTICAL MASER [J].
BENNETT, WR .
PHYSICAL REVIEW, 1962, 126 (02) :580-&
[6]  
Born M., 1964, PRINCIPLES OPTICS
[7]   GENERALIZED CONFOCAL RESONATOR THEORY [J].
BOYD, GD ;
KOGELNIK, H .
BELL SYSTEM TECHNICAL JOURNAL, 1962, 41 (04) :1347-+
[8]  
DOUGAL AA, 1964, APPL PHYS LETT, V4, P156
[9]   CORRELATED INTERFEROMETRIC MEASUREMENTS OF PLASMA ELECTRON DENSITIES AT OPTICAL MICROWAVE FREQUENCIES [J].
GERARDO, JB ;
VERDEYEN, JT .
APPLIED PHYSICS LETTERS, 1965, 6 (09) :185-&
[10]   LASER INTERFEROMETER - APPLICATION TO PLASMA DIAGNOSTICS [J].
GERARDO, JB ;
VERDEYEN, JT .
PROCEEDINGS OF THE IEEE, 1964, 52 (06) :690-+