Volume 95, Number 6, September 2011
|Number of page(s)||5|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||07 September 2011|
LiNbO3 proton-exchanged waveguide layers: Phase composition and stress
Institute of Solid State Physics, Bulgarian Academy of Sciences - 72 Tzarigradsko Chaussee Blvd., 1784 Sofia, Bulgaria, EU
Accepted: 3 August 2011
An analysis of phase composition of proton-exchanged waveguide layers in LiNbO3 of X, Y and Z crystallographic orientations has been performed based on the mode and IR absorption spectra. Obtained at different technological conditions, the waveguides studied show complex phase composition with different quota of the phases present. The intrinsic stress caused by crystal lattice deformations at a relatively high level of hydrogen doping in the proton-exchanged layers has been estimated by the optical integral method. The results contribute to a better understanding of the properties and characteristics of such waveguides.
PACS: 78.20.-e – Optical properties of bulk materials and thin films / 78.30.-j – Infrared and Raman spectra / 81.05.-t – Specific materials: fabrication, treatment, testing, and analysis
© EPLA, 2011
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