3 papers
physics.optics2025
Resonant enhancement of second harmonic generation in 2D nonlinear crystal integrated with meta-waveguide: analytical vs numerical approaches
Egor S. Vyatkin, Sergey A. Tarasenko
We present an analytical theory of second harmonic generation (SHG) in hybrid structures combining a nonlinear 2D crystal with a dielectric metasurface waveguide. The theory descri…
quant-ph2024
Nonlinear dynamical Casimir effect and Unruh entanglement in waveguide QED with parametrically modulated coupling
Egor S. Vyatkin, Alexander V. Poshakinskiy, Alexander N. Poddubny
We study theoretically an array of two-level qubits moving relative to a one-dimensional waveguide. This motion can be implemented mechanically or simulated via the modulation of t…
cond-mat.mes-hall2021
Optomechanical amplification driven by interference of phonon-exciton and phonon-photon couplings
Egor S. Vyatkin, Alexander N. Poddubny
We study theoretically optomechanical damping and amplification spectra for vibrations interacting with excitonic polaritons in a zero-dimensional microcavity. We demonstrate, that…