Title :
Structural phase diagram of Hx/Li1-xNbO3 waveguides: The correlation between optical and structural properties
Author :
Korkishko, Yu.N. ; Fedorov, V.A.
Author_Institution :
Inst. of Electron. Technol., Acad. of Sci., Moscow, Russia
fDate :
6/1/1996 12:00:00 AM
Abstract :
We show that proton exchanged Hx/Li1-xNbO3 single-crystalline solid solutions exhibit very complex structural chemistry, which is different from those known for powders. Seven crystallographic phases have been identified in Hx/Li1-xNbO3 layers. Correlation between the crystal structure and the ordinary and extraordinary refractive indices has been experimentally determined which allows us to explain some of the observed optical phenomena and to predict the characteristics of the great variety of proton exchanged waveguides.
Keywords :
crystal structure; ferroelectric materials; hydrogen compounds; ion exchange; lithium compounds; optical fabrication; optical waveguides; refractive index; H/sub x/Li/sub 1-x/NbO/sub 3/ waveguides; HLiNbO/sub 3/; complex structural chemistry; crystal structure; extraordinary refractive index; optical properties; ordinary refractive index; proton exchange; single-crystalline solid solutions; structural phase diagram; Capacitive sensors; Crystallography; Niobium compounds; Optical device fabrication; Optical refraction; Optical variables control; Optical waveguides; Powders; Protons; Waveguide components;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/2944.577359
