Evaporographic and pyroelectric image recording for two-dimensional plasma interferometry in the far infrared
- 1 July 1977
- journal article
- Published by Optica Publishing Group in Journal of the Optical Society of America
- Vol. 67 (7), 975-978
- https://doi.org/10.1364/josa.67.000975
Abstract
We report on interferometric experiments which show that evaporography together with cw far-infrared (FIR) sources in the 10-mW-power level is suited for two-dimensional FIR interferometry of stationary plasmas, while pyroelectric image recording in principle allows pulsed two-dimensional FIR interferometry with FIR pulse energies in the millijoule range. As an example, the electron density distribution in a carbon arc is determined interferometrically with a cw HCN laser (λ = 337 µm). In addition, some specific problems of two-dimensional interferometry in the FIR are discussed.Keywords
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