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Strain and surface damage induced by proton exchange inY‐cut LiNbO3

 

作者: A. Campari,   C. Ferrari,   G. Mazzi,   C. Summonte,   S. M. Al‐Shukri,   A. Dawar,   R. M. De La Rue,   A. C. G. Nutt,  

 

期刊: Journal of Applied Physics  （AIP Available online 1985）
卷期: Volume 58, issue 12  

页码: 4521-4524

 

ISSN:0021-8979

 

年代: 1985

 

DOI:10.1063/1.336266

 

出版商: AIP

 

数据来源: AIP

 

摘要:

WhenY‐cut LiNbO3substrates 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.

 

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