Title: Photorefractive properties of undoped lithium tantalate crystals for various composition
Authors: Holtmann, F.
Imbrock, J.
Bäumer, Ch.
Hesse, H.
Krätzig, E.
Kip, Detlef  
Language: en
Subject (DDC): DDC::500 Naturwissenschaften und Mathematik
Issue Date: Dec-2004
Publisher: American Inst. of Physics
Document Type: Article
Journal / Series / Working Paper (HSU): Journal of applied physics : AIP's archival journal for significant new results in applied physics 
Volume: 96
Issue: 12
Page Start: 7455
Page End: 7459
Publisher Place: Melville, NY
Abstract: 
Lithium tantalate crystals of compositions ranging from 48.3 mol % to 50.0 mol % lithium oxide are fabricated by vapor transport equilibration. Light-induced refractive index changes of the crystals are investigated with holographic methods at usual cw-laser intensities (≈ 105 W/m 2) and with a single focused laser beam at high light intensities up to 2 × 107 W/m2. In stoichiometric crystals the index changes are reduced by more than two orders of magnitude when compared with congruently melting ones. Simultaneously, the normalized photoconductivity σph/I, where I is the light intensity, increases by nearly two orders of magnitude. Therefore, stoichiometric lithium tantalate is an attractive material for applications such as frequency conversion via quasi-phase matching. © 2004 American Institute of Physics.
Organization Units (connected with the publication): Technische Universität Clausthal
URL: https://api.elsevier.com/content/abstract/scopus_id/11044236769
ISSN: 00218979
DOI: 10.1063/1.1805189
Appears in Collections:Publications of the HSU Researchers (before HSU)

Show full item record

CORE Recommender

SCOPUSTM   
Citations

19
checked on May 18, 2022

Google ScholarTM

Check

Altmetric

Altmetric


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