Strain and surface damage induced by proton exchange in Y-cut LiNbO3
- 15 December 1985
- journal article
- conference paper
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 58 (12) , 4521-4524
- https://doi.org/10.1063/1.336266
Abstract
When Y‐cut LiNbO3 substrates are proton exchanged in pure benzoic acid to fabricate optical waveguides, they suffer surface damage, and a consequent degradation in optical properties. This effect is mainly produced by a remarkably large strain in the exchanged layer in a direction normal to the surface. This strain leads to a large number of cracks and to the peeling off of the exchanged layer itself. This paper presents a probable explanation of the mechanism involved.This publication has 14 references indexed in Scilit:
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