The SHEW technique as a simple method to characterize the non-linear properties of crystals: investigation of helium implantation effects in LiNbO3 and KTiOPO4

Authors
Kremer, R Bindner, P Boudrioua, A Moretti, P Loulergue, JC
Citation
R. Kremer et al., The SHEW technique as a simple method to characterize the non-linear properties of crystals: investigation of helium implantation effects in LiNbO3 and KTiOPO4, OPT MATER, 16(1-2), 2001, pp. 125-130
Citations number
13
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
OPTICAL MATERIALS
ISSN journal
09253467 → ACNP
Volume
16
Issue
1-2
Year of publication
2001
Pages
125 - 130
Database
ISI
SICI code
0925-3467(200102/03)16:1-2<125:TSTAAS>2.0.ZU;2-Y
Abstract
The Second Harmonic wave generated with Evanescent Wave (SHEW) technique is first applied to measure the value of the non-linear coefficient, d(33), o f lithium niobate (LN). The result is in good agreement with the known valu e from the literature. We subsequently investigate the second-order optical properties of the near surface of He+-implanted LN and KTiOPO4 (KTP) cryst als. Our results show a rather strong degradation of the non-linearity (app roximate to 50%) in both crystals. (C) 2001 Published by Elsevier Science B .V.