Development of a phase contrast imaging system based on a yttrium aluminum garnet laser with folded beam for observations of density fluctuations in compact helical system

A near-infrared laser phase contrast optical system incorporating a folded beam was developed in order to measure the distribution of density fluctuations in a high-temperature plasma. The coherent light source used was an yttrium aluminum garnet laser stabilized by a ring oscillator. The probe beam...

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Bibliographic Details
Published inReview of scientific instruments Vol. 79; no. 10; p. 10F514
Main Authors Matsuo, K, Uchida, N, Kawakubo, M, Iguchi, H, Okamura, S, Matsuoka, K, Akiyama, T
Format Journal Article
LanguageEnglish
Published United States 01.10.2008
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Summary:A near-infrared laser phase contrast optical system incorporating a folded beam was developed in order to measure the distribution of density fluctuations in a high-temperature plasma. The coherent light source used was an yttrium aluminum garnet laser stabilized by a ring oscillator. The probe beam system separates and reflects the incident and exiting beams with a polarizer and a fully reflective mirror with a waveplate. This system was employed with a compact helical system to detect fluctuations at the plasma edge.
ISSN:1089-7623
DOI:10.1063/1.2953574