Title :
High temperature phases in protonated lithium niobate and tantalate properties [optical waveguide applications]
Author :
Kalabin, Ivan E. ; Grigorieva, Tatiana I. ; Pokrovsky, Lev D. ; Atuchin, Victor V.
Author_Institution :
Inst. of Semicond. Phys., Acad. of Sci., Novosibirsk, Russia
Abstract :
The formation conditions of metastable phases in proton exchanged lithium niobate and tantalate substrates were studied using waveguide layers fabricated for the control of optical parameters. The relaxation time of high temperature phases was estimated. The shift of the IR spectra peak, corresponding to OH-bond absorption was observed. The possible mechanisms of high temperature phase formation and decay are discussed in this article.
Keywords :
high-temperature effects; hydrogen; ion exchange; light absorption; lithium compounds; metastable states; optical materials; optical waveguides; refractive index; relaxation; solid-state phase transformations; spectral line shift; IR spectra peak shift; LiNbO3:H; LiTaO3:H; OH-bond absorption; high temperature phases; metastable phase decay; metastable phase formation; optical parameters control; optical waveguides; proton exchange; protonated lithium niobate; protonated lithium tantalate; refractive index; relaxation time; Electromagnetic wave absorption; Frequency conversion; Hydrogen; Lithium niobate; Niobium compounds; Optical waveguides; Protons; Refractive index; Substrates; Temperature;
Conference_Titel :
Electron Devices and Materials, 2003. Proceedings. 4th Annual 2003 Siberian Russian Workshop on
Print_ISBN :
5-7782-0412-4
DOI :
10.1109/SREDM.2003.1224177
