abstract
We report the fabrication of transparent, low surface roughness (<0.1 nm), and low-loss (1.5 +/- 0.2 dB cm (1), 532 nm) thin films of organic-inorganic hybrids with controlled refractive index values stable under aging. High-rejection optical filters based on first-order Bragg gratings inscribed in channel waveguides were fabricated using UV-laser writing. Their high-rejection figure of merit (similar to 24 dB) is the best value found until now for organic inorganic hybrids reinforcing the potential of sol gel technology in the integration of optoelectronic components based on hybrid materials, namely in the fabrication of cost-effective integrated optics devices. (C) 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
keywords
PLANAR; TECHNOLOGY; POLYMERS
subject category
Materials Science; Physics
authors
Vicente, CMS; Venkatachaam, R; Ferreira, BM; Marques, PG; Marques, CAF; Pecoraro, E; Carlos, LD; Andre, PS; Ferreira, RAS
our authors
Carlos Miguel Santos Vicente
Post-doc Fellowship
Luís António Ferreira Martins Dias Carlos
Full professor
Maria Rute de Amorim e Sá Ferreira André
Vice DirectorProjects
Self-patternable organic/inorganic hybrids for low cost integrated optics devices (PTDC/CTM/72093/2006)
Organic-inorganic hybrids with enhanced light-emitting properties for the new generation of optical communications (PTDC/CTM/101324/2008)
acknowledgements
COST MP0702, FCT, FEDER, (PTDC/CTM/72093/2006, PTDC/CTM/101324/2008, SFRH/BD/41943/2007). A. Kholkin, I. Bdikin, A. Macedo (University of Aveiro) for AFM measurements and L. Xavier (University of Aveiro) for light scattering measurements and Fig. S3.