Polarimetry diagnostic on OMEGA EP using a 10-ps, 263-nm probe beam

Journal Article · Fri Nov 14 23:00:00 EST 2014 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4889908· OSTI ID:22308650

Haberberger, D.; Boni, R.; Ivancic, S.; Brown, R.; Froula, D. H. ^[1]

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1. Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623 (United States)

A polarimetry diagnostic was built and characterized for magnetic-field measurements in laser-plasma experiments on the OMEGA EP laser. This diagnostic was built into the existing 4ω (263-nm) probe system that employs a 10-ps laser pulse collected with an f/4 imaging system. The diagnostic measures the rotation of the probe beam's polarization. The polarimeter uses a Wollaston prism to split the probe beam into orthogonal polarization components. Spatially localized intensity variations between images indicate polarization rotation. Magnetic fields can be calculated by combining the polarimetry data with the measured plasma density profile obtained from angular filter refractometry.

• OSTI ID: 22308650
• Journal Information: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 11 Vol. 85; ISSN 0034-6748; ISSN RSINAK
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
BEAMS
LASER-PRODUCED PLASMA
MAGNETIC FIELDS
PLASMA DENSITY
PLASMA RADIAL PROFILES
POLARIMETERS
POLARIMETRY
POLARIZATION
PRISMS
PULSES
REFRACTION
ROTATION