Two dimensional submillimeter interferometer with high time resolution by using a super rotating grating

T. Maekawa

doi:10.1117/12.2297913

1 October 1991 Two dimensional submillimeter interferometer with high time resolution by using a super rotating grating

T. Maekawa

Proceedings Volume 1576, 16th International Conference on Infrared and Millimeter Waves; 15765K (1991) https://doi.org/10.1117/12.2297913
Event: 16th International Conference on Infrared and Millimeter Waves, 1991, Lausanne, Switzerland

Abstract

A 2-D multichannel interferometer designed for tomographically inferring contours of electron density in the WT-3 tokamak plasmas (R≃0.65 m, a≃0.2 m, B_τ≤1.75 T) with high time resolution is described. A frequency shift of w_lF=1.45 MHz for a local beam splitted from a 337 μm HCN laser beam is obtained by use of a super rotating grating /1/, which allows the time resolution of the density measurements as fast as τ≃10 μsec.

Citation Download Citation

T. Maekawa "Two dimensional submillimeter interferometer with high time resolution by using a super rotating grating", Proc. SPIE 1576, 16th International Conference on Infrared and Millimeter Waves, 15765K (1 October 1991); https://doi.org/10.1117/12.2297913

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