10 June 1996 Mechanisms and dynamics of optical nonlinearities in semiconductor nanocrystals
Author Affiliations +
Proceedings Volume 2801, Nonlinear Optics of Low-Dimensional Structures and New Materials; (1996) https://doi.org/10.1117/12.242145
Event: International Conference on Coherent and Nonlinear Optics, 1995, St. Petersburg, Russian Federation
Abstract
In this paper, we discuss the dynamics of carrier recombination in semiconductor nanoparticles embedded in a glass matrix, forming the so-called semiconductor-doped glasses. We observe that carrier recombination may be made faster by photodarkening and, at high excitation intensity, by Auger processes. We also discuss the mechanisms of the resonant optical Kerr effect in these materials. It is shown to be comprised of a fast component due to free carriers in particles without traps and of a slow one due to trapped carriers in particles with traps. The figure of merit associated with the fast component decreases when the particle size decreases.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Daniel Ricard, M. Ghanassi, Marie C. Schanne-Klein, Christos Flytzanis, "Mechanisms and dynamics of optical nonlinearities in semiconductor nanocrystals", Proc. SPIE 2801, Nonlinear Optics of Low-Dimensional Structures and New Materials, (10 June 1996); doi: 10.1117/12.242145; https://doi.org/10.1117/12.242145
PROCEEDINGS
10 PAGES


SHARE
Back to Top