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Dispersion of electro-optic coefficients in sillenite crystals.
Appl. Phys. B-Lasers Opt. 95, 467-473 (2009)
The photorefractive crystals of the sillenite family (Bi12SiO20 or BSO, Bi12GeO20 or BGO, and Bi12TiO20 or BTO) that belong to the cubic 23 point group are optically active, and exhibit the piezoelectric, elasto-optic, electro-optic and electrogyration effect. In this paper we measure the dispersion of the electro-optic coefficient for all the crystals of the sillenite family in the visible spectral range (500-800 nm). For this we measure by ellipsometry the polarization properties of a beam transmitted in the transverse configuration under the action of an externally applied field. The experimental data are fitted with an analytical expression of the beam polarization to find the electro-optic coefficient. The results show a normal dispersion of the electro-optic coefficient in all three sillenite crystals, similarly to other electro-optic crystals.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
photorefractive materials; wavelength dependence; optical-activity; linbo3 crystal; electric-field; bi12sio20; bi12tio20; polarization; bi12geo20
ISSN (print) / ISBN
0946-2171
e-ISSN
1432-0649
Journal
Applied Physics B
Quellenangaben
Volume: 95,
Issue: 3,
Pages: 467-473
Publisher
Springer
Non-patent literature
Publications
Reviewing status
Peer reviewed
Institute(s)
Institute of Biological and Medical Imaging (IBMI)