| Autor: |
Korkishko, Yu. N., Fedorov, V. A., Baranov, E. A., Proyaeva, M. V., Morozova, T. V., Caccavale, F., Segato, F., Sada, C., Kostritskii, S. M. |
| Zdroj: |
Journal of the Optical Society of America A: Optics, Image Science & Vision; May 2001, Vol. 18 Issue: 5 p1186-1191, 6p |
| Abstrakt: |
Waveguides in LiNbO_3 are realized by a soft proton exchange (SPE) process with use of a melt of stearic acid highly diluted by lithium stearate. No phase transitions are formed when -phase waveguides are obtained by SPE. The alpha-phase presents the same crystalline structure as that of pure LiNbO_3 crystal, and it maintains the excellent nonlinear and electro-optical properties of the bulk material. The kinetics of the SPE method is studied by the use of secondary-ion mass spectrometry and prism-coupling techniques. The hydrogen effective diffusion coefficient as well as the self-diffusion coefficients of H^+ and Li^+ ions are determined as a function of the proton-exchange temperature for X-cut LiNbO_3 . |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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