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Proceedings Paper

Nonlinear optical properties of semiconductor quantum dots and organic molecules in glasses prepared by the sol-gel method
Author(s): Renata Reisfeld
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Paper Abstract

Nonlinear behavior of glasses and especially thin films prepared by the sol-gel method make these materials an interesting class for optoelectronic devices especially when connected with their wave guide properties. From theoretical point of view these materials provided models for three-dimensional quantum confinement and allow identification ofthe energy ofthe excited states. These energy states ofthe quantum dots are positioned between the discrete energy levels of the atoms or bands of molecules and the broad band of the condensed phase. We describe the preparation of glasses doped by fluorescein, acridine and methyl-orange and discuss the origin of their nonlinear properties. Preparation of glass films doped by CdS and CuC1 quantum dots are also presented and their properties analyzed. The relation between the energies of the electronic states and size of the particles are discussed.

Paper Details

Date Published: 7 December 1992
PDF: 11 pages
Proc. SPIE 1758, Sol-Gel Optics II, (7 December 1992); doi: 10.1117/12.132047
Show Author Affiliations
Renata Reisfeld, Hebrew Univ. of Jerusalem (Israel)

Published in SPIE Proceedings Vol. 1758:
Sol-Gel Optics II
John D. Mackenzie, Editor(s)

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