ISSN:
1572-9559
Keywords:
FIR laser
;
interferometer
;
plasma
;
electron density
;
vibration compensation
;
quasi-optical Shottky diodes
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract A modulated far-infrared laser interferometer which is presently operating on the PDX experiment at Princeton is described. The interferometer geometry permits the characterization of inside “D”, outside “D” as well as circular discharges. To achieve this versatility, a titanium corner cube reflector, mounted inside the PDX vacuum vessel is used in conjunction with a second visible wavelength interferometer for vibration corrections. In addition, the use of room temperature quasi-optical Schottky diodes in the far-infrared interferometer is reported. The minimum detectable line average density of the system is ∼5×1011 cm−3.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01013472
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