武汉理工大学学报（材料科学版）（英文版）
武漢理工大學學報（材料科學版）（英文版）
무한리공대학학보（재료과학판）（영문판）
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY(MATERIALS SCIENCE EDITION)
2007年
1期
66-69
,共4页
optical properties%nano-crystals%thin-film waveguides%mode propagation losses
Composite thin films of PbTiO3 nano-crystals and high transparency polymer polyetherketone(PEK-c) for application of non-linear optical devices were prepared by spin coating. The size of PbTiO3 nano-crystals was estimated to be 30-40 nm using a transmission electron microscope. The refractive index and the mode propagation losses at 633 nm were measured using the prism coupling technique and improved photographic technique respectively. They were found to be 1.6545 and 2.00 dB cm-1 (fundamental mode),respectively. Moreover, it is observed that this loss is increased at higher mode indices.
