Fabrication and optical properties of thin films with sol-gel derived di-ureasils doped with Disperse Red 1
authors Vicente, CMS; Fu, L; Andre, PS; Bermudez, VD; Ferreira, RAS
nationality International
journal OPTICAL AND QUANTUM ELECTRONICS
author keywords Sol-gel; Thin films; Dyes; Optical properties; Integrated optics
keywords INFRARED TEMPERATURE; ROOM-TEMPERATURE; HYBRID MATERIALS; POLYMER-FILMS; WAVE-GUIDES; CHROMOPHORE; GENERATION; SPECTRA
abstract We report the fabrication and the structural and optical characterization of transparent spin coated films (average thickness values of 4.9 +/- 0.1 mu m) of organic-inorganic hybrids (di-ureasils) doped with the Disperse Red 1 (DR1) chromophore. The refractive index was measured by prism coupling and spectroscopic ellipsometry revealing that the inclusion of DR1 induces a refractive index increase of similar to 1.0 x 10(-2) at 1550 nm, with respect to the non-doped host. Under UV exposure, the refractive index values of the DR1-doped hybrids decreased (-5 x 10(-3), at 1550 nm) due to a conformational alteration of DR1, as suggested by infrared and Raman spectroscopies. The global results indicate that DR1 doped di-ureasils are promising candidates as self-patternable planar waveguides for nonlinear integrated optics and photonic applications.
publisher SPRINGER
issn 0306-8919
year published 2016
volume 48
issue 8
digital object identifier (doi) 10.1007/s11082-016-0661-4
web of science category Engineering, Electrical & Electronic; Optics
subject category Engineering; Optics
unique article identifier WOS:000381086200018
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journal analysis (jcr 2017):
journal impact factor 1.168
5 year journal impact factor 1.088
category normalized journal impact factor percentile 28.423
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