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Sol–Gel‐Processed SiO 2 /TiO 2 /Methylcellulose Composite Materials for Optical Waveguides
Author(s) -
Chen Wei,
Tao Xiaoming,
Zhang Junying,
Fang Qi,
Yang Jun
Publication year - 2005
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2005.00543.x
Subject(s) - sol gel , materials science , composite number , homogeneous , waveguide , wavelength , coating , composite material , thermal treatment , thin film , chemical engineering , nanotechnology , optoelectronics , physics , thermodynamics , engineering
SiO 2 –TiO 2 –methylcellulose (MC) composite materials processed by the sol‐gel technique were studied for optical waveguide applications. Dense, crack‐free and homogeneous films as thick as 2 μm were obtained via the organic binder MC‐assisted sol–gel process and single coating with low‐temperature treatment. Light waveguiding in such hybrid film was demonstrated at a wavelength of 650 nm. About 1.1 dB/cm or lower propagation loss for the SiO 2 (80 mol%)–TiO 2 (20 mol%)–MC (22 wt%) film can be achieved. The effects of thermal treatment on the structure and properties of the gel films were also investigated.