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Thin film optimization design of organic–inorganic hybrids for waveguide high‐rejection optical filters
Author(s) -
Vicente Carlos M. S.,
Venkatachaam Ramkanna,
Ferreira Bruno M.,
Marques Paulo G.,
Marques Carlos A. F.,
Pecoraro Edison,
Carlos Luis D.,
André Paulo S.,
Ferreira Rute A. S.
Publication year - 2011
Publication title -
physica status solidi (rrl) – rapid research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.786
H-Index - 68
eISSN - 1862-6270
pISSN - 1862-6254
DOI - 10.1002/pssr.201105283
Subject(s) - fabrication , materials science , refractive index , laser , optoelectronics , waveguide , optics , thin film , figure of merit , hybrid material , high refractive index polymer , surface roughness , nanotechnology , composite material , medicine , alternative medicine , physics , pathology
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 (∼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. (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)