A new scheme for heterodyne polarimetry with high temporal resolution

J H Rommers, J Howard
1996 Plasma Physics and Controlled Fusion  
A new scheme for making combined interferometric and polarimetric measurements on tokamak plasmas with high temporal resolution is presented. The method, which can be regarded as a generalization of techniques suggested by other workers, can achieve bandwidths in excess of 100 kHz using an optically pumped far-infrared triple laser source. A bandwidth of 10 kHz with an accuracy of better than 0.2 • has already been demonstrated. Calibration measurements as well as first plasma measurements
more » ... ned with the new approach are presented and evaluated.
doi:10.1088/0741-3335/38/10/008 fatcat:lzbdvii5fra5fjh6s5pitcaily