Open AccessNovel elastic scattering model for the understanding of the Anomalous transmittance for Au nanoparticle layer
Author(s) -
Jaesung Yang,
Jong Hwan Sung,
O BeomHoan
Publication year - 2010
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.18.013418
Subject(s) - transmittance , scattering , materials science , mie scattering , optics , elastic scattering , inelastic scattering , light scattering , drude model , particle (ecology) , spectral line , molecular physics , physics , oceanography , astronomy , geology
The optical transmission spectra of several samples of gold nanoparticle layers were examined using a modified Drude model proposed with a novel elastic scattering parameter, gamma'. Although the measured transmission spectra deviated from the simple calculation from Mie scattering, it was explained well by the modified model assuming elastic and inelastic scattering in the form of the collision frequency of free electrons within a metal particle due to the particle boundary. The particle-size and inter-particle-distance dependences of gamma' were extracted within the framework of the proposed model from the curve of best fit of the transmittance spectra.