A novel scheme of laser interferometer–refractometer with high spatial and temporal resolutions
作者:
I. V. Lisitsyn,
S. Kohno,
H. Akiyama,
期刊:
Review of Scientific Instruments
(AIP Available online 1997)
卷期:
Volume 68,
issue 12
页码: 4353-4356
ISSN:0034-6748
年代: 1997
DOI:10.1063/1.1148396
出版商: AIP
数据来源: AIP
摘要:
A novel scheme combining interferometer and refractometer for simultaneous plasma density and plasma density gradient measurements is described. The scheme employs a ribbon laser beam obtained from one-dimensional laser beam expansion by a pair of cylindrical lenses. This beam shape allows measurements at several spatial locations simultaneously. The beam deflection measurements give additional important information on the spatial distribution of plasma density gradient in the direction perpendicular to the major axis of the expanded beam. Fast pin photodiodes are used as light detectors for temporal resolution better than 1 ns. The high power (700 mW) of the argon ion laser allows 0.1° phase resolution and simultaneously 0.1 mrad refractional deflection angle resolution. ©1997 American Institute of Physics.
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