Linear and nonlinear optical characteristics of composites containing metal nanoparticles with different sizes and shapes

We study the effective linear and nonlinear optical parameters of composites containing noble metal nanoparticles and their dependence on the shape and size of the particles. Our numerical approach is based on the effective medium approximation combined with discrete dipole approximation, which resu...

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Bibliographic Details
Published in:Optics express 2010-03, Vol.18 (7), p.7488-7496
Main Authors: Kim, Kwang-Hyon, Husakou, Anton, Herrmann, Joachim
Format: Article
Language:English
Subjects:
Algorithms
Computer Simulation
Metal Nanoparticles - chemistry
Models, Statistical
Models, Theoretical
Nanospheres - chemistry
Nanostructures
Nanotechnology - methods
Optics and Photonics
Silver - chemistry
Water - chemistry
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Summary:We study the effective linear and nonlinear optical parameters of composites containing noble metal nanoparticles and their dependence on the shape and size of the particles. Our numerical approach is based on the effective medium approximation combined with discrete dipole approximation, which results in a fast and accurate numerical method. The results demonstrate the possibility to achieve large enhancements of the linear and nonlinear optical parameters by tuning the plasmon resonance to a desired frequency by changing the size and the shape of the nanoparticles.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.18.007488