PE-LAYERS AND PROTON DIFFUSION PROFILES IN LINBO3 INVESTIGATED WITH FOURIER-IR AND 2ND HARMONIC-GENERATION

DC FieldValueLanguage
dc.contributor.authorKAPPHAN, S
dc.contributor.authorBREITKOPF, A
dc.date.accessioned2021-12-23T16:01:13Z-
dc.date.available2021-12-23T16:01:13Z-
dc.date.issued1992
dc.identifier.issn00318965
dc.identifier.urihttps://osnascholar.ub.uni-osnabrueck.de/handle/unios/4827-
dc.description.abstractDeep proton-exchanged (PE) layers in congruent LiNbO3 with thickness up to 10 mum are studied by Fourier-IR spectroscopy, mode-coupling, and interference techniques. Effective diffusion constants, depending on the amount of Li buffering in the benzoic melt and crystal cut, as well as the relation between layer thickness and the absorption of the fundamental (nu01) and the next higher O-H vibrational transition (nu02) are measured. Based upon the H/Li exchange ratio in the layer an OH oscillator strength for nu01 of f(osc) = 1.6 x 10(-2) is found. This allows to determine the refractive index change per OH concentration by combining frequency doubling (SHG) and absorption measurements in OH profiles in the bulk of LiNbO3. Resulting values for H indiffusion DELTAn(e)/DELTAC(H) = (2.9 /- 0.6) x 10(-23) cm3 and Li outdiffusion DELTAn(e)/DELTAC(Li) = 3.4 x 10(-23) cm3 are about the same. Extrapolation of these DELTAn values to the large [H]/[Li] variation in the PE-layer, leads to much larger DELTAn values than observed, pointing to a strongly nonlinear mechanism.
dc.language.isoen
dc.publisherAKADEMIE VERLAG GMBH
dc.relation.ispartofPHYSICA STATUS SOLIDI A-APPLIED RESEARCH
dc.subjectCRYSTALS
dc.subjectEXCHANGED LINBO3
dc.subjectHYDROGEN
dc.subjectMaterials Science
dc.subjectMaterials Science, Multidisciplinary
dc.subjectOH-IONS
dc.subjectPhysics
dc.subjectPhysics, Applied
dc.subjectPhysics, Condensed Matter
dc.subjectREFRACTIVE-INDEX
dc.subjectSPECTROSCOPY
dc.subjectTEMPERATURE
dc.subjectWAVE-GUIDES
dc.titlePE-LAYERS AND PROTON DIFFUSION PROFILES IN LINBO3 INVESTIGATED WITH FOURIER-IR AND 2ND HARMONIC-GENERATION
dc.typejournal article
dc.identifier.doi10.1002/pssa.2211330117
dc.identifier.isiISI:A1992JX65900016
dc.description.volume133
dc.description.issue1
dc.description.startpage159
dc.description.endpage166
dc.publisher.placeMUHLENSTRASSE 33-34, D-13187 BERLIN, GERMANY
dcterms.isPartOf.abbreviationPhys. Status Solidi A-Appl. Res.
Show simple item record

Page view(s)

3
Last Week
0
Last month
0
checked on Apr 13, 2024

Google ScholarTM

Check

Altmetric