From the 1 of 6 linked papers with an AI index.
6 papers
Twist tunable resonances in photonic bilayer for second harmonic generation
Egor S. Vyatkin, Sergey A. Tarasenko
The paper presents an analytical theory for how twisting photonic bilayers creates tunable moiré resonances that can dramatically enhance second harmonic generation when integrated…
Electric and spin-valley currents induced by structured light in 2D Dirac materials
A. A. Gunyaga, M. V. Durnev, S. A. Tarasenko
Structured optical fields can be used for the injection and control of charge and spin-valley currents. Here, we present a systematical study of these phenomena for interband absor…
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…
Trembling motion of electrons driven by Larmor spin precession
I. Stepanov, M. Ersfeld, A. V. Poshakinskiy +4
We show that the initialization of an ensemble of electrons in the same spin state in strained n-InGaAs subject to a perpendicular magnetic field triggers an AC electric current at…
Second harmonic generation due to spatial structure of radiation beam
A. A. Gunyaga, M. V. Durnev, S. A. Tarasenko
We show that spatially structured radiation generates second harmonic in a two-dimensional system even if the system is homogeneous and isotropic. The effect originates from non-lo…
Emergent spin and orbital angular momentum of light in twisted photonic bilayer
Egor S. Vyatkin, Alexander V. Poshakinskiy, Sergey A. Tarasenko
We demonstrate that the optical response of twisted photonic bilayers, photonic counterparts of van der Waals structures, is sensitive to both spin angular momentum (SAM) and orbit…