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Proceedings Paper

CdS-doped ormosils as nonlinear optical materials
Author(s): Chia-Yen Li; Matthew Wilson; Nancy M. Haegel; John D. Mackenzie; Edward T. Knobbe; Cindy Porter; Roger J. Reeves
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Paper Abstract

Organically modified silicates (Ormosils) have been applied as matrices in the preparation of CdS-doped glassy nanocomposites via a low temperature route. EDX spectra show that a CdS concentration up to about 20 wt.% has been obtained. The CdS microcrystallites of hexagonal wurtzite structure with average particle size in the range of 20 to 120 angstroms were formed within Ormosils matrices. The quantum confinement effects were clearly observed in samples with smaller particle sizes from absorption and photoluminescence excitation spectra. High- quality CdS-doped films with enough thickness have been prepared by spin-coating for waveguide device application. The Ormosils used are thermally stable up to 360 degree(s)C which is higher than the processing temperature for normal integrated circuits. The nonlinear optical properties of these nanocomposites measured by degenerated four wave mixing technique on picosecond time scales using a Nd+3:YAG laser at 532 nm are described.

Paper Details

Date Published: 18 August 1992
PDF: 8 pages
Proc. SPIE 1692, Nonlinear and Electro-Optic Materials for Optical Switching, (18 August 1992); doi: 10.1117/12.138064
Show Author Affiliations
Chia-Yen Li, MicroTouch Systems, Inc. (United States)
Matthew Wilson, Univ. of California/Los Angeles (United States)
Nancy M. Haegel, Univ. of California/Los Angeles (United States)
John D. Mackenzie, Univ. of California/Los Angeles (United States)
Edward T. Knobbe, Oklahoma State Univ. (United States)
Cindy Porter, Oklahoma State Univ. (United States)
Roger J. Reeves, Oklahoma State Univ. (United States)

Published in SPIE Proceedings Vol. 1692:
Nonlinear and Electro-Optic Materials for Optical Switching
M. J. Soileau, Editor(s)

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