Spatially resolved second-harmonic-generation investigations of proton-induced refractive-index changes in LiNbO3
- 1 February 1989
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 65 (3) , 1253-1256
- https://doi.org/10.1063/1.343018
Abstract
Doping profiles generated by electric‐field‐assisted proton diffusion in LiNbO3 bulk material are investigated, spatially resolved by absorption and by second‐harmonic‐generation measurements. The results allow a direct correlation of the refractive‐index changes with the local proton density. It is shown that protons are the only mobile ions under the experimental conditions applied (600 °C, 100 V/cm), whereas lithium ions do not move under these conditions. Similar results were obtained for samples doped with deuterium.This publication has 18 references indexed in Scilit:
- Diffusion of Hydrogen (OH− Ions) in LiNbO3 CrystalsPhysica Status Solidi (a), 1987
- Overtone Spectroscopy of the OH and OD Stretch Modes in LiNbO3Physica Status Solidi (b), 1987
- Measurement of the deuterium concentration profile in a deuterium-exchanged LiNbO3 crystalJournal of Applied Physics, 1985
- Independent control of index and profiles in proton-exchanged lithium niobate guidesOptics Letters, 1983
- Proton exchange for high-index waveguides in LiNbO3Applied Physics Letters, 1982
- Hydrogen as origin of thermal fixing in LiNbO3: FeSolid State Communications, 1981
- An optical study of the stretching absorption band near 3 microns from OH- defects in LiNbO3Solid State Communications, 1973
- HOLOGRAPHIC PATTERN FIXING IN ELECTRO-OPTIC CRYSTALSApplied Physics Letters, 1971
- Correlation of Reduction in Optically Induced Refractive-Index Inhomogeneity with OH Content in LiTaO3 and LiNbO3Journal of Applied Physics, 1968
- Reduction of the Susceptibility to Optically Induced Index Inhomogeneities in LiTaO3 and LiNbO3Journal of Applied Physics, 1967