High-energy 4ω probe laser for laser-plasma experiments at Nova

Details High-energy 4ω probe laser for laser-plasma experiments at Nova High-energy 4ω probe laser for laser-plasma experiments at Nova

Jan 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999rsci...70.1089g&link_type=abstract

Review of Scientific Instruments, Volume 70, Issue 1, pp. 1089-1092 (1999).

Physics

13

Optical Measurements, Plasma Production And Heating By Laser Beams, Fueling, Heating And Ignition, Laser Spectroscopy

Scientific paper

For the characterization of inertial confinement fusion plasmas, we implemented a high-energy 4ω probe laser at the Nova laser facility. A total energy of >50 J at 4ω, a focal spot size of order 100 μm, and a pointing accuracy of 100 μm was demonstrated for target shots. This laser provides intensities of up to 3×1014 W cm-2 and therefore fulfills high-power requirements for laser-plasma interaction experiments. The 4ω probe laser is now routinely used for Thomson scattering. Successful experiments were performed in gas-filled hohlraums at electron densities of ne>2×1021 cm-3 which represents the highest density plasma so far being diagnosed with Thomson scattering.

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