THEORY OF THE LASER INTERFEROMETER AND ITS USE IN PLASMA DIAGNOSTICS.

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Abstract:

The theory of the laser interferometer and its application in investigations of relatively dense to very dense gaseous plasmas is discussed. It is shown that the sensitivity of the interferometer can be greatly improved by utilizing a spherical geometry reference cavity rather than one formed by planar mirrors. The parameters that determine the sensitivity of a spherical geometry laser interferometer are discussed and detailed theory of such is given. Particular emphasis is placed on determining the maximum frequency response of the interferometer. The parameters that limit the frequency response are discussed and it is shown that by proper selection of these parameter and proper detection techniques, it is possible to detect resonances at rates in excess of 50 per microsecond. Author

Author(s):
Gerardo, J. B. ; Verdeyen, J. T. ; Gusinow, M. A.
Author Organization(s):
ILLINOIS UNIV URBANA ENGINEERING EXPERIMENT STATION
Descriptive Note:
Scientific rept. no. 1,
Annotation:
Theory of the laser interferometer and its use in plasma diagnostics.
Pagination:
0100

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
AROD-4832 2
Contract/Grant Number(s):
DA ARO D31 124G582
Project Number(s):
4832P, 20010501B700
Monitor Series:
4832 2
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*PLASMAS(PHYSICS), *ELECTROMAGNETIC PROBES, INTERFEROMETERS, LASERS, REFRACTIVE INDEX, IONOSPHERIC PROPAGATION, GAS IONIZATION, ELECTRON DENSITY, MICROWAVE EQUIPMENT, MICROWAVE NETWORKS, FREQUENCY MODULATION, OSCILLATION, EQUATIONS
Keyword(s):
OPTICAL CAVITIES
Report Date:
1964 Dec 01