Three-channel diagnostical system for the time-space measurement of the magnetic fields in the laser-produced plasma

Gennady S. Sarkisov; Yu. S. Kas'anov; Andrei S. Shikanov

doi:10.1117/12.218314

1 September 1995 Three-channel diagnostical system for the time-space measurement of the magnetic fields in the laser-produced plasma

Gennady S. Sarkisov, Yu. S. Kas'anov, Andrei S. Shikanov

Author Affiliations +

Proceedings Volume 2549, Ultrahigh- and High-Speed Photography, Videography, and Photonics '95; (1995) https://doi.org/10.1117/12.218314
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

The spatial-temporal structure of magnetic fields in a laser plasma has been studied by a Faraday-effect method by means of three-channel polarointerferometer system. The diagnostic method is based on simultaneous measurements of the polarization plane rotation angle and the interference phase shift of the probing laser pals. The diagnostical system allows to record simultaneously Faraday, shadow, and interference images of the plasma with a high spatial resolution, approximately 5 micrometers , and a high time resolution, approximately 50 ps, both in the framing mode (with an exposure time approximately 1.5 ns) and in a dynamic mode (in this case we used two image converter cameras operated in the streak mode). The contrast of the polarimeter was approximately 3(DOT)10^-5, so it was possible to measure the angle through which the polarization plane rotated within +/- 0.1 deg. The error in the determination of the phase shift of the probe wave was +/- 0.1 line.

Citation Download Citation

Gennady S. Sarkisov, Yu. S. Kas'anov, and Andrei S. Shikanov "Three-channel diagnostical system for the time-space measurement of the magnetic fields in the laser-produced plasma", Proc. SPIE 2549, Ultrahigh- and High-Speed Photography, Videography, and Photonics '95, (1 September 1995); https://doi.org/10.1117/12.218314

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