Short wavelength light sources and applications (1)

[ALPS27-01(Invited)] Laser phase contrast imaging for the visualization of plasma fluctuations

*Kenji Tanaka¹, Toshiki Kinoshita², Hikona Sakai² (1. National Institute for Fusion Science, 2. Kyusyu University)

Phase contrast imaging enables to visualize transparent object converting small phase variation into intensity variation giving quarter wavelength path difference between scattered and non-scattered laser radiation. This technique is powerful to measure plasma fluctuations