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This article is cited in 3 scientific papers (total in 3 papers)
CONDENSED MATTER
Diffraction of light on a regular domain structure with inclined walls in MgO : LiNbO$_3$
E. N. Savchenkova, S. M. Shandarova, S. V. Smirnova, A. A. Esinb, A. R. Akhmatkhanovb, V. Ya. Shurb a Tomsk State University of Control Systems and Radioelectronics, Tomsk, Russia
b Ural Federal University, Yekaterinburg, Russia
Abstract:
Features of the Bragg diffraction of a Gaussian light beam on a regular domain structure with inclined $180^\circ$ domain walls in a $5\%$ MgO : LiNbO$_3$ crystal have been studied experimentally and theoretically. The regular domain structure with a period of $8.79 \mu$m along the $X$ axis has been prepared by the polarization switching method under the action of an external electric field in a $1$-mm $Z$-cut plate. It has been shown that the inclination of walls of the regular domain structure by the angle $\alpha$ to the polar $Z$ axis results in the $m$th order Bragg diffraction characterized by the intensity distribution $I_m(z)$ with two maxima the spacing between which at $m = 1, 3, 4, \dots$ increases as $m\alpha$. The application of an external static electric field to the regular domain structure has allowed using the dynamics of the efficiency of the Bragg diffraction with $m = 1$ to detect the screening of this field associated with the conductivity of inclined domain walls. The effective value of this conductivity over the period $\Lambda$ for the studied regular domain structure with $\alpha = 0.31^\circ$ has been estimated as $\sigma_{\text{eff}}= 5.96\cdot10^{-11}\Omega^{-1}$ m$^{-1}$.
Received: 05.06.2019 Revised: 17.06.2019 Accepted: 17.06.2019
Citation:
E. N. Savchenkov, S. M. Shandarov, S. V. Smirnov, A. A. Esin, A. R. Akhmatkhanov, V. Ya. Shur, “Diffraction of light on a regular domain structure with inclined walls in MgO : LiNbO$_3$”, Pis'ma v Zh. Èksper. Teoret. Fiz., 110:3 (2019), 165–169; JETP Letters, 110:3 (2019), 178–182
Linking options:
https://www.mathnet.ru/eng/jetpl5964 https://www.mathnet.ru/eng/jetpl/v110/i3/p165
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Abstract page: | 187 | Full-text PDF : | 34 | References: | 21 | First page: | 6 |
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