7 citations · 14 across the 7 of their papers we have counts for
5 papers · 1 filter
Nonlinear Optical Microscopy of Semiconductor Metal-Nanocavities
Riya Varghese, Shambhavee Annurakshita, Yaraslau Tamashevich +13
We use second and third harmonic generation microscopy to investigate the nonlinear optical response of GaAs nanocavities embedded in a gold film and compare them to bare GaAs nano…
Structured Light-Matter Interaction: Twisted Photons in Graphene
Yaraslau Tamashevich, Marco Ornigotti
In this work we present a numerical framework for studying the interaction of structured electromagnetic fields, i.e., light pulses carrying orbital angular momentum (OAM), interac…
Field theory description of the non-perturbative optical nonlinearity of epsilon-near-zero media
Yaraslau Tamashevich, Tornike Shubitidze, Luca Dal Negro +1
In this paper we introduce a fully non-perturbative approach for the description of the optical nonlinearity of epsilon-near-zero (ENZ) media. In particular, based on the rigorous…
Inhomogeneous Dirac-Bloch Equations for Graphene Interacting with Structured Light
Yaraslau Tamashevich, Marco Ornigotti
We generalise the usual framework of Dirac-Bloch equations, used to compute the nonlinear optical response of 2D materials excited by spatially uniform optical pulses, to the case…
Nonlinear optical response of Type-II Weyl fermions in two dimensions
Yaraslau Tamashevich, Leone Di Mauro Villari, Marco Ornigotti
We present a theoretical model to study the nonlinear optical response of materials with a low-energy spectrum characterised by strongly tilted, type-II, Weyl cones in two dimensio…