Open AccessSize-dependent optical properties of BaTiO_3 - SrTiO_3 superlattices
Author(s) -
Jussi Hiltunen,
Jyrki Lappalainen,
Jarkko Puustinen,
V. Lantto,
Harry L. Tuller
Publication year - 2008
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.16.008219
Subject(s) - stacking , materials science , superlattice , birefringence , layer (electronics) , optics , pulsed laser deposition , stress (linguistics) , relaxation (psychology) , deposition (geology) , optoelectronics , thin film , condensed matter physics , composite material , nanotechnology , nuclear magnetic resonance , psychology , social psychology , paleontology , linguistics , physics , philosophy , sediment , biology
Artificial BaTiO(3)-SrTiO(3) superlattices with stacking periodicity varying between 27 and 1670 A in separate films were grown on MgO substrates by pulsed laser deposition. Both the static and active optical properties were found to be sensitive on the stacking periodicity. Birefringence decreased with increasing individual layer thickness due to relaxation of the interface originated stress. The electro-optic response also showed a layer thickness dependence, reaching a maximum at an individual layer thickness of 13 unit cells.