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Proceedings Paper

Optimization of diffraction efficiency of transmission hologram in cubic photorefractive piezocrystal of (110)-cut in dc electric field
Author(s): S. F. Nichiporko; A. E. Zagorskiy; Vasiliy V. Shepelevich; N. N. Egorov; Klaus H. Ringhofer; Yi Hu; Ekaterina F. Shamonina
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Paper Abstract

On the base of the analytical solution of the couple differential equations system in the photorefractive piezocrystal with transmission holographic grating the optimization of the diffraction efficiency is conducted by choice of the crystal orientation and linear polarization of the reading light. It has been theoretically established, that for bi12SiO20 piezocrystal with thickness 10 mm at different values of external electric field E0 the maximum diffraction efficiency (eta) M is reached for the following magnitudes of the (theta) and (Psi) respectively: without electric field (theta) =42 degree(s), (Psi) =35 degree(s), with electric field 5 kV/cm (theta) =51 degree(s), (Psi) =19 degree(s). Without taking into account the piezoelectric effect these orientation and polarization angles have the following values: without electric field (theta) =0 degree(s), (Psi) =107 degree(s), with electric field 5 kVcm (theta) =43 degree(s), (Psi) =31 degree(s). It is shown, that taking into account the piezoelectric effect increases the maximum diffraction efficiency (eta) M in 2.13 times at E0; in 2.47 times at E0=5 kV/cm; in 1.75 times at E0=1- kV/cm; in 1.43 times at E0=15 kV/cm.

Paper Details

Date Published: 15 March 2001
PDF: 12 pages
Proc. SPIE 4358, Optics of Crystals, (15 March 2001); doi: 10.1117/12.418842
Show Author Affiliations
S. F. Nichiporko, Mozyr State Pedagogical Institute (Belarus)
A. E. Zagorskiy, Mozyr State Pedagogical Institute (Belarus)
Vasiliy V. Shepelevich, Mozyr State Pedagogical Institute (Belarus)
N. N. Egorov, Mozyr State Pedagogical Institute (Belarus)
Klaus H. Ringhofer, Univ. Osnabrueck (Germany)
Yi Hu, Univ. Osnabrueck (Germany)
Ekaterina F. Shamonina, Univ. Osnabrueck (Germany)


Published in SPIE Proceedings Vol. 4358:
Optics of Crystals
Vasiliy V. Shepelevich; N. N. Egorov, Editor(s)

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