Photorefractive properties of iron-doped lithium tantalate crystals
Publication date
2004-03
Document type
Research article
Author
Organisational unit
Technische Universität Clausthal
Scopus ID
ISSN
Series or journal
Applied Physics B Lasers and optics
Periodical volume
78
First page
614
Last page
622
Part of the university bibliography
Nein
Abstract
Iron-doped lithium tantalate crystals are grown by the Czochralski method and their photorefractive properties are examined with holographic methods. Dynamic range, holographic sensitivity, photoconductivity, and dark storage time are measured in dependence on the iron concentration and light intensity. The largest refractive-index change for ordinarily polarized light is 3.5 × 10-4, in comparison with 6.2 × 10-4 for iron-doped lithium niobate. Due to a small mobility of protons the dark storage time of holograms in lithium tantalate is larger than that in lithium niobate.
Version
Not applicable (or unknown)
Access right on openHSU
Metadata only access