Simulation of Nanostructures Fabricated in Chalcogenide Glasses for use as Surface- enhanced Raman Scattering Substrates
Published: 2013-03-19
Page: 137-144
Issue: 2013 - Volume 3 [Issue 2]
A. Zakery *
Department of Physics, College of Science, Shiraz University, Shiraz 71454, Iran
A. Asrar
Department of Physics, College of Science, Shiraz University, Shiraz 71454, Iran
S. R. Elliott
Department of Chemistry, Cambridge University, Cambridge CB2 1EW, UK
*Author to whom correspondence should be addressed.
Abstract
We have simulated the Chalcogenide glass (ChG)-based nanostructures which are used as substrates for surface-enhanced Raman scattering (SERS). A discrete dipole approximation method was used and calculated results are compared to those of experimental. The results of simulation agreed well with the experiment. Furthermore, we have obtained conditions under which higher enhancement factors (almost by an order of magnitude) could be achieved by changing the polarization state and the incident angle of the beam on the surface.
Keywords: SERS, Chalcogenide