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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/27614

Title: Nonlocal Effects in the Optical Response of Composite Materials with Metallic Nanoparticles
Authors: Railing Chang;H.-P. Chiang;P.T. Leung;D.P. Tsai;W.S. Tsec
Contributors: NTOU:Institute of Optoelectronic Sciences
Keywords: A. Disordered systems;D. Optical properties
Date: 2005-02
Issue Date: 2011-10-21T02:32:23Z
Publisher: Solid State Communications
Abstract: Abstract:A phenomenological model for the optical response of composite materials with metallic nanoparticles is presented. This model applies the conventional effective medium theories (EMT) but takes into account the spatial dispersion effects in the dielectric response of the metallic nanoparticles. This leads to an EMT that depends on the size of the particles. Numerical results from a model computation shows that this effect due to the nonlocal optical response of the nanoparticles can increase the resonant absorption frequency of the composite significantly for particles of very small sizes; and can lead to resonant absorption even in the Bruggeman symmetric EMT—a feature which is believed to be absent in the conventional treatment where local response for the metal particles has been assumed. PACS 78.20.Ci;61.46.+w
Relation: 133(5), pp.315-320
URI: http://ntour.ntou.edu.tw/handle/987654321/27614
Appears in Collections:[光電科學研究所] 期刊論文

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