Abstract
A systematic analysis of the impact of laser radiation on disordered metal nanoparticle aggregates has been carried out using the simplest model of a resonance domain in the form of a bisphere. Such aggregates can be considered as a set of elementary domains with different eigen-resonant frequencies. The model is basically a pair of bound spherical nanoparticles having equal radii and covered with a polymer adsorption layer. A significant change in the resonance properties of the domain occurs due to the change of interparticle gaps under applied radiation. We investigated the temporal variation of parameters and hence optical characteristics of coupled Ag nanoparticles under pulsed laser radiation for different wavelengths, intensities and pulse durations and for different initial values of the interparticle gap.
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