Dynamic changes of optical characteristics of resonant domains in metal nanoparticle aggregates under pulsed laser fields


Тип публикации: статья из журнала

Год издания: 2011

Идентификатор DOI: 10.1007/s00340-010-4180-x

Ключевые слова: Ag nanoparticle, biSphere, Disordered metals, Dynamic changes, Initial values, Metal nanoparticles, Optical characteristics, Polymer adsorption, Pulse durations, Pulsed-laser field, Resonant domain, Resonant frequencies, Spherical nanoparticles, Systematic analysis, Temporal variation, Adsorption, Laser radiation, Nanoparticles, Natural frequencies, Optical materials, Silver, Pulsed lasers

Аннотация: 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 oПоказать полностьюf 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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Выпуск журнала: Vol. 102, Is. 1

Номера страниц: 65-72

ISSN журнала: 09462171

Место издания: NEW YORK

Издатель: SPRINGER


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