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Proceedings Paper

Comparative analysis of organic-chromophore-doped sol-gel films by poling optical polarimetry, ellipsometry, AFM, and Abeles-Hacskaylo characterization
Author(s): Flavio Horowitz; Petrus A. Alcantara; Marcelo Barbalho Pereira; L. F. Campo; V. Stefani
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Paper Abstract

We consider application of the in situ poling optical polarimetry method to guest-host systems consisting of a Corona-poled, sol-gel, porous silicate film matrix doped with Disperse Red 1 (DR1) chromophores. Refractive indices, and physical thicknesses are consistently determined by ex situ null ellipsometry, atomic force microscopy and Abeles- Hacskaylo characterization. Due to the pronounced poling- induced birefringence we found in the composite films, in opposition to previous approaches, we could not disregard it with respect to refractive index values. Even for the case of strong birefringence, this procedure and associated modeling allow estimation of electro-optic coefficients and second-order susceptibilities of poled dielectric films doped with DR1, or with other high hyperpolarizability chromophores.

Paper Details

Date Published: 5 October 1999
PDF: 6 pages
Proc. SPIE 3799, Organic Photorefractives, Photoreceptors, Waveguides, and Fibers, (5 October 1999); doi: 10.1117/12.363919
Show Author Affiliations
Flavio Horowitz, Univ. Federal do Rio Grande do Sul (Brazil)
Petrus A. Alcantara, Univ. Federal do Rio Grande do Sul (Brazil)
Marcelo Barbalho Pereira, Univ. Federal do Rio Grande do Sul (Brazil)
L. F. Campo, Univ. Federal do Rio Grande do Sul (Brazil)
V. Stefani, Univ. Federal do Rio Grande do Sul (Brazil)


Published in SPIE Proceedings Vol. 3799:
Organic Photorefractives, Photoreceptors, Waveguides, and Fibers
David H. Dunlap; Stephen Ducharme; David H. Dunlap; Robert A. Norwood; Robert A. Norwood, Editor(s)

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