Abstract
A physical model of metal nanoparticle fragmentation in liquid media upon exposure to femtosecond laser pulses is proposed by the example of gold nanoparticle fragmentation in water. The model is based on electrolyzing the metal nanoparticles heated by laser pulses and their fragmentation during development of the instability of charged liquid metal drops. The nanoparticle charge gained upon exposure to laser radiation in water is estimated and the nanoparticle fragmentation parameter is determined.
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