3 papers
physics.optics2026
Bragg-enhanced time-domain Brillouin scattering from a propagating acoustic grating
O. S. Ken, D. O. Horiachyi, V. L. Korenev +4
Generation and detection of coherent phonons in semiconductors by femtosecond optical pulses is a powerful tool for high-frequency acoustic control of their electronic properties.…
cond-mat.mes-hall2026
Exciton-resonant detection of high-frequency surface acoustic waves from subwavelength metal gratings
Olga Ken, Dmytro Horiachyi, Ilya Akimov +8
We report on all-optical generation and detection of high-frequency (up to about 30 GHz) surface acoustic waves (SAWs) in GaAs/AlGaAs heterostructures with short-period Au gratings…
cond-mat.mes-hall2025
Non-local synchronization of continuous time crystals in a semiconductor
Alex Greilich, Nataliia E. Kopteva, Vladimir L. Korenev +6
Synchronization resulting in unified collective behavior of the individual elements of a system that are weakly coupled to each other has long fascinated scientists. Examples range…