36 citations · 39 across the 6 of their papers we have counts for
7 papers
Optical Control of Chirality by Ultrafast Symmetry Breaking in Membrane Metasurfaces
Nikita Glebov, Alena Mamonova, Olesia Pashina +7
Chirality underpins a wide range of light-matter interactions, yet methods for its dynamic control in photonic systems remain limited. Here, we demonstrate ultrafast all-optical co…
Mid-IR Light Modulators Enabled by Dynamically Tunable Ultra High-Q Silicon Membrane Metasurfaces
Felix Ulrich Brikh, Aleksei Ezerskii, Olesia Pashina +6
Metasurfaces have emerged as a powerful platform to control free-space light at the subwavelength scale, enabling applications in sensing, lasing, nonlinear optics, and quantum pho…
Excitation of surface plasmon-polaritons through optically-induced ultrafast transient gratings
Olesia Pashina, Albert Seredin, Giulia Crotti +4
Ultrafast excitation of non-equilibrium carriers under intense pulses offer unique opportunities for controlling optical properties of semiconductor materials. In this work, we pro…
Second-Order Nonlinear Circular Dichroism in Square Lattice Array of Germanium Nanohelices
Grégoire Saerens, Günter Ellrott, Olesia Pashina +5
Second harmonic generation (SHG) is prohibited in centrosymmetric crystals such as silicon or germanium due to the presence of inversion symmetry. However, the structuring of such…
Thermo-optical bistability enabled by bound states in the continuum in silicon metasurfaces
Alexander Barulin, Olesia Pashina, Daniil Riabov +9
The control of light through all-optical means is a fundamental challenge in nanophotonics and a key effect in optical switching and logic. The optical bistability effect enables t…
Fast simulation of light scattering and harmonic generation in axially symmetric structures in COMSOL
Sergei Gladyshev, Olesia Pashina, Alexey Proskurin +5
In the field of optics and nanophotonics, simulation of electromagnetic scattering plays a major role in the study of complex nanostructures and optical devices. The numerical anal…
Subwavelength Raman Laser Driven by Quasi Bound State in the Continuum
Daniil Riabov, Ruslan Gladkov, Olesia Pashina +2
Raman lasers is an actively developing field of nonlinear optics aiming to create efficient frequency converters and various optical sensors. Due to the growing importance of ultra…