Title: Photorefractive properties of lithium and copper in-diffused lithium niobate crystals
Authors: Imbrock, Jörg
Wirp, Albert
Kip, Detlef  
Krätzig, Eckhard
Berben, Dirk
Language: en
Subject (DDC): DDC::500 Naturwissenschaften und Mathematik
Issue Date: 2002
Publisher: Soc.
Document Type: Article
Journal / Series / Working Paper (HSU): Journal of the Optical Society of America B 
Volume: 19
Issue: 8
Page Start: 1822
Page End: 1829
Publisher Place: Washington, DC
Abstract: 
Near-stoichiometric copper-doped lithium niobate crystals are fabricated by in-diffusion of thin layers of evaporated copper and a subsequent vapor transport equilibration treatment. The crystals are heated in a Li-rich atmosphere to increase the Li content. To determine the photorefractive properties, holographic as well as electrical measurements are performed. Saturation values of the refractive-index changes ΔnS, bulk photovoltaic current densities jphv, photoconductivities σ ph, and holographic sensitivities S are measured for light intensities up to 104 W/m2. Comparison with experimental data of congruent crystals indicates that the specific photoconductivity is 15 times larger after a vapor transport equilibration treatment. The specific bulk photovoltaic coefficient β* is 2 times larger, refractive-index changes are 7 times smaller, and the holographic sensitivity is up to 4 times larger. © 2002 Optical Society of America.
Organization Units (connected with the publication): Universität Osnabrück
URL: https://api.elsevier.com/content/abstract/scopus_id/0141563659
ISSN: 07403224
DOI: 10.1364/JOSAB.19.001822
Appears in Collections:Publications of the HSU Researchers (before HSU)

Show full item record

CORE Recommender

SCOPUSTM   
Citations

18
checked on May 21, 2022

Google ScholarTM

Check

Altmetric

Altmetric


Items in openHSU are protected by copyright, with all rights reserved, unless otherwise indicated.