Abstract
We investigate the self-formation of new type solitons, chirped solitons, occurring at a pico- or femtosecond pulse propagation in a medium with noble metal nanoparticles, and their inelastic collision. The solitons are formed due to the laser radiation trapping by the nanorod reshaping fronts if a positive phase-amplitude grating is induced by laser radiation. We take into account the dependence of two-photon absorption on the nanorod aspect ratio and time-dependent nanorod aspect ratio changing due to their reshaping because of laser energy absorption.
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