Chinese Optics Letters, 2005, 3 (7): 07399, Published Online: Jun. 6, 2006
Preparation and characterization of SiO2/TiO2/methylcellulose hybrid thick films for optical waveguides Download: 577次
130.3130 integrated optics materials 310.6860 thin films optical properties 230.7390 waveguides planar 160.6060 sol-gel 160.4670 optical materials
Abstract
SiO2/TiO2/methylcellulose composite materials processed by the sol-gel technique were studied for optical waveguide applications. With the help of methylcellulose, an organic binder, SiO2/TiO2/methylcellulose hybrid thick films were prepared by a single spin-coating processes. After annealing at 70 Celsius degree for an hour, 2.5-μm crack-free and dense organic--inorganic hybrid optical films with a refractive index of 1.537 were achieved. Optical losses of plane waveguide made up of those films and ordinary slide glass substrate are around 0.3 dB/cm at 650 nm. Scanning electronmicroscopy (SEM) and UV-visible spectroscopy (UV-VIS), have been used to characterize the thick films.
Jun Yang, Xinyu Zhang, Pei Wang, Hai Ming, Yunxia Wu, Jianping Xie, Junying Zhang. Preparation and characterization of SiO2/TiO2/methylcellulose hybrid thick films for optical waveguides[J]. Chinese Optics Letters, 2005, 3(7): 07399.