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Angular stability of electric field‐induced effects in crystalline materials
Author(s) -
Kushnir O. S.,
Yurkevych O. V.,
Andrushchak A. S.
Publication year - 2013
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.201300056
Subject(s) - lithium niobate , piezoelectricity , anisotropy , materials science , electric field , thermal stability , crystal (programming language) , optics , doping , lithium (medication) , optoelectronics , composite material , chemistry , physics , medicine , organic chemistry , quantum mechanics , computer science , programming language , endocrinology
We analyze angular bandwidths of extrema of the indicative surfaces describing spatial anisotropy of piezoelectric (PE) and electrooptic (EO) properties of doped lithium niobate (LiNbO 3 :MgO) and langasite (La 3 Ga 5 SiO 14 ) crystals. A number of highly efficient experimental geometries are suggested, which are promising for PE and EO devices. Our data obtained with both analytical and numerical techniques characterize angular stability of those devices and, in particular, their angular aperture. We show that, besides of a maximal size of the electric field‐induced effects, ‘nondirect crystal cuts’ offer considerably higher angular stability of their characteristics, when compared with that typical for ‘direct crystal cuts’ usually employed in PE and EO devices.