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

Journal Article · Thu Aug 20 00:00:00 EDT 1992 · Applied Optics; (United States)

DOI:https://doi.org/10.1364/AO.31.005030· OSTI ID:7010577

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

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1. Plasma Physics Laboratory, Princeton, New Jersey 08543 (United States)
2. School of Physics, the University of Sydney, New South Wales, Australia 2006 ( )

A Stark-tuned optically pumped far-infrared CH{sub 3}OH laser operating at 119 {mu}m 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 W and an electric field of 1 kV/cm the laser has delivered over 100 mW cw 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 by using standard techniques.

• DOE Contract Number: AC02-76CH03073
• OSTI ID: 7010577
• Journal Information: Applied Optics; (United States), Vol. 31:24; ISSN 0003-6935
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
LIQUID LASERS
DESIGN
USES
PLASMA DIAGNOSTICS
INTERFEROMETRY
FAR INFRARED RADIATION
FREQUENCY MODULATION
GAIN
METHANOL
OPTICAL PUMPING
STARK EFFECT
ALCOHOLS
AMPLIFICATION
ELECTROMAGNETIC RADIATION
HYDROXY COMPOUNDS
INFRARED RADIATION
LASERS
MODULATION
ORGANIC COMPOUNDS
PUMPING
RADIATIONS
426002* - Engineering- Lasers & Masers- (1990-)
700320 - Plasma Diagnostic Techniques & Instrumentation- (1992-)