By Topic

Influence of metallic nanoparticles on upconversion processes

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.

The purchase and pricing options are temporarily unavailable. Please try again later.
3 Author(s)
Esteban, R. ; Laboratoire d’Énergétique Moléculaire et Macroscopique, Combustion, École Centrale Paris, Centre National de la Recherche Scientifique, Grande Voie des Vignes, 92295 Châtenay-Malabry Cedex, France ; Laroche, M. ; Greffet, J.-J.

Your organization might have access to this article on the publisher's site. To check, click on this link: 

It is well known that Raman scattering and fluorescence can be enhanced by the presence of metallic nanoparticles. Here, we derive simple equations to analyze the influence of metallic nanoparticles on upconversion processes such as nonradiative energy transfer or excited state absorption. We compare the resulting expressions with the more familiar Raman and fluorescence cases and find significant differences. We use numerical simulations to calculate the upconverted signal enhancement achievable by means of metallic spheres of different radii and find particles of 100–400 nm radius at infrared frequencies to be favorable. We also discuss the considerable challenges involved in using metallic particles to enhance upconversion for solar energy.

Published in:

Journal of Applied Physics  (Volume:105 ,  Issue: 3 )