Enhanced second order non-linear optical properties of silica sol-gel thin films through photo-induced poling

Abbas, B. and Mitchell, G.R. (1998) Enhanced second order non-linear optical properties of silica sol-gel thin films through photo-induced poling. Journal of Sol-Gel Science and Technology, 13 (1-3). pp. 647-650. ISSN 1573-4846 doi: 10.1023/A:1008672100872

Abstract/Summary

Sol-gel derived inorganic materials are of interest as hosts for non-linear optically active guest molecules and they offer particular advantages in the field of non-linear optics. Orientationally ordered glasses have been prepared using a sol-gel system based on tetramethoxysilane, methyltrimethoxysilane and a non-linear optical chromophore Disperse Red 1. The novel technique of photo-induced poling was used to generate enhanced levels of polar order. The level of enhancement is strongly dependent on the extent of gelation and an optimum preparation time of ∼100 h led to an enhancement factor of ∼5. Films prepared in this manner exhibited a high stability of the polar order.

Item Type	Article
URI	https://reading-clone.eprints-hosting.org/id/eprint/26752
Item Type	Article
Refereed	Yes
Divisions	Interdisciplinary centres and themes > Chemical Analysis Facility (CAF) > Electron Microscopy Laboratory (CAF)
Publisher	Kluwer
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