20 February 2017 Possibility of femtosecond soliton mode propagation with complicated pulse chirp
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Abstract
We predict a new type of fast chirped soliton at a femtosecond pulse propagation in a medium containing the noble nanoparticles. This soliton type is characterized by the complicated pulse chirp. At our analysis we take into account the TPA of laser radiation by nanorods, and time-dependent nanorod aspect ratio changing due to their reshaping because of laser energy absorption. The chirped soliton is formed due to the trapping of laser radiation by the nanorods reshaping front, if a positive or negative phase-amplitude grating is induced by laser radiation. We analyze the conditions for the soliton with complicated chirp occurrence and numerically investigate their propagation.
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Vyacheslav A. Trofimov, Tatiana M. Lysak, "Possibility of femtosecond soliton mode propagation with complicated pulse chirp", Proc. SPIE 10119, Slow Light, Fast Light, and Opto-Atomic Precision Metrology X, 101190I (20 February 2017); doi: 10.1117/12.2253644; https://doi.org/10.1117/12.2253644
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