arXiv subjects

Z. A. Pyatakova

Publications and source records attributed to Z. A. Pyatakova.

3 recordsLinked to original sources

arXiv2016

Magnetic Bubble Domain Blowing with Electric Probe

The problem of bubble domain generation is revisited from a new perspective that was opened by recent findings in the field of physics of magnetic skyrmions. The single bubble domain can be generated under the tip electrode touching the surface of dielectric iron garnet film by positive step-like voltage pulse and its equilibrium size can be increased with further rising of electric potential. The theoretical analysis shows that the same mechanism can be used to stabilize the submicron bubbles topologically equivalent to the skyrmion.

cond-mat.str-el↗

arXiv2010

Model of acousto-optic diffraction of light in 2-D photonic crystals

The model of nonlinear interaction of proper waves of photonic crystal with plane acoustic wave was developed. The formulation of the model is reduced to the eigenvalue problem, which can be solved by computer simulations. By means of the formulae given in present paper one can predict which polarizations of acoustic wave can result in Bragg diffraction of optical waves of TE or TM polarizations. Computer simulation allows obtaining amplitudes of interaction waves in the case of Bragg diffraction when phase-matching conditions are fulfilled.

physics.optics↗

arXiv2008

Acoustooptic Bragg Diffraction in 2-Dimensional Photonic Crystals

The paper shows that silicon-based 2D photonic crystal can be a promising material for acoustooptical devices. Isotropic and anisotropic Bragg diffraction of light in photonic crystal is considered. The computational method for calculation of frequency dependences of Bragg angle is developed. A simple method of optimization of photonic crystal parameters to obtain Bragg diffraction at necessary light and sound frequency is suggested.

cond-mat.other↗