3 papers
cond-mat.mes-hall2020
Bose condensation and spin superfluidity of magnons in a perpendicularly magnetized film of yttrium iron garnet
P. M. Vetoshko, G. A. Knyazev, A. N. Kuzmichev +3
The formation of a Bose condensate of magnons in a perpendicularly magnetized film of yttrium iron garnet under radio-frequency pumping in a strip line is studied experimentally. T…
physics.optics2020
Amplification of Electrostriction Mechanism of Photoacoustic Conversion in Layered Media
Grigory Knyazev, Daria Ignatyeva, Ivan Sopko +2
In this work we have performed an analysis of electrostriction mechanism of optical to acoustical energy conversion on the interface of two materials with low optical absorption. W…
cond-mat.mtrl-sci2019
Efficient acousto-optical light modulation at the mid-infrared spectral range by planar semiconductor structures supporting guided modes
Ivan M. Sopko, Daria O. Ignatyeva, Grigory A. Knyazev +1
Acousto-optical devices, such as modulators, filters or deflectors, implement a simple and effective way of light modulation and signal processing techniques. However, their operat…