Abstract

The interaction of femtosecond laser radiation with incident intensities in the 0.110TW/cm2 range and a single 30 μm water microdroplet is investigated experimentally and numerically. The experimental dependencies of backscattered energy, spectrum, and acoustic signal as a function of incident intensity are compared with the results of extensive numerical modeling based, for the first time, on self-consistent solution of Maxwell equations using a nonlinear 3D finite-distance time-domain (FDTD) code and a balance equation for plasma density.

© 2014 Optical Society of America

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