A Stark-tuned, far-infrared laser for high frequency plasma diagnostics

Technical Report · Sun Mar 01 00:00:00 EST 1992

DOI:https://doi.org/10.2172/5656208· OSTI ID:5656208

Mansfield, D K; Vocaturo, M; Guttadora, L; Rockmore, M; Micai, K ^[1]; Krug, P A ^[2]

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1. Princeton Univ., NJ (United States). Plasma Physics Lab.
2. Sydney Univ. (Australia). School of Physics

A Stark-tuned optically pumped far-infrared methanol laser operating at 119 micrometers has been built. The laser is designed to operate at high power while exhibiting a well-separated Stark doublet. At a pump power of 65 Watts and electric field of 1 kV/cm the laser has delivered over 100 mW c.w. while exhibiting a frequency splitting of 34 MHz. These parameters indicate that this laser would be suitable for use in the present generation of modulated interferometers on large thermonuclear plasma devices. The achieved modulation frequency is more than an order of magnitude higher than could be achieved using standard techniques.

• Research Organization: Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC02-76CH03073
• OSTI ID: 5656208
• Report Number(s): PPPL-2803; ON: DE92010004
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ELECTRON DENSITY
PLASMA DIAGNOSTICS
LASERS
INFRARED RADIATION
INTERFEROMETERS
PERFORMANCE
STARK EFFECT
ELECTROMAGNETIC RADIATION
MEASURING INSTRUMENTS
RADIATIONS
700320* - Plasma Diagnostic Techniques & Instrumentation- (1992-)