Abstract
A complimentary experimental and numerical investigation on density perturbations formed in molecular nitrogen by pulsed optical lattices was conducted. Experimental results on the effect of laser intensity and gas pressure on the magnitude of induced density perturbations from the free-molecular through continuum regimes using a coherent Rayleigh-Brillouin scattering technique are presented. The investigation further verifies the use of the direct simulation Monte Carlo method, extended to include the non-resonant optical dipole force, as a robust tool for the prediction of laser modification to a neutral gas.
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