By Topic

Preparation and optical characterization of Au/SiO2 composite films with multilayer structure

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $31
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)

Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.1560569 

An investigation of Au/SiO2 composite multilayer films with a large third-order optical nonlinearity is reported in this article. Multilayer films containing Au nanoparticles with narrow size and shape distributions can be obtained by controlling the thickness of the Au layer, as well as the annealing temperature and time duration. It is found that the peak of surface plasmon resonance (SPR) of films with mean nanoparticle size of 30 nm is located at 2.35 eV with a width of 350 meV. The SPR peak of films containing larger or smaller particles red-shifts and broadens due to the particle size and shape effects. The third-order optical nonlinear susceptibility χ(3) of these films has a maximum value of about 5.1×10-6 esu at 532 nm when the mean nanoparticle size is around 30 nm. We attribute the observed size dependence of χ(3) to the competition between the enhancement of the local field factor and the skin-depth effect. © 2003 American Institute of Physics.

Published in:

Journal of Applied Physics  (Volume:93 ,  Issue: 8 )