32 citations · 74 across the 12 of their papers we have counts for
12 papers
Time-dependent Berry curvature and quantum metric of Floquet-Bloch states
S. Sajad Dabiri, Reza Asgari
The quantum geometry of Bloch bands, characterized by the Berry curvature and the quantum metric, underpins a wide range of linear and nonlinear responses in static systems. Here,…
Nonlinear Optical Response in Pseudo-Hermitian Systems at Steady State
S. Sajad Dabiri, Reza Asgari
We establish a steady-state theory for nonlinear optical conductivity in pseudo-Hermitian systems. We derive compact formulas for the first and second order conductivity tensors in…
Quantum magnetotransport in monolayer
Muzamil Shah, Imtiaz Khan, Kashif Sabeeh +2
We present a theoretical framework to investigate quantum magnetotransport in monolayer jacutingaite, focusing on its response to external electric fields and off-resonant circular…
Velocity gauge formulation of nonlinear optical response in Floquet-driven systems
S. Sajad Dabiri, Reza Asgari
Using the velocity gauge formalism, we develop a theoretical framework for computing the nonlinear optical responses of time-periodic quantum systems. This approach complements the…
Enhanced Brewster Angle Shift in Doped Graphene via the Fizeau Drag Effect
Rafi Ud Din, Yuncheng Zhou, Reza Asgari +1
We derive the general Fresnel coefficients for reflection by incorporating the Fizeau drag effect in doped graphene, which arises from the unique behavior of its massless Dirac ele…
Dynamical nonlinear optical response in time-periodic quantum systems
S. Sajad Dabiri, Reza Asgari
We present a comprehensive theoretical framework for calculating the linear and nonlinear optical responses of time-periodic quantum systems. Using density matrix evolution in the…
Spatio-spectral control of spontaneous emission
Seyyed Hossein Asadpour, Muqaddar Abbas, Hamid R. Hamedi +3
We propose a scheme aimed at achieving spatio-spectral control over spontaneous emission within a four-level atom-light coupling system interacting with optical vortices carrying o…
Spatial Characterization of Fraunhofer Diffraction in a Four-Level Light-Matter Coupling System
Seyyed Hossein Asadpour, Teodora Kirova, Hamid R. Hamedi +1
We explore the spatial features of various orders of Fraunhofer diffraction patterns in a four-level N-type atomic system. The system interacts with a weak probe light, a standing…
Photonic spin Hall effect in Haldane model materials
Muzamil Shah, Muhammad Sabieh Anwar, Reza Asgari +1
The photonic spin Hall effect of light beams reflected from the surfaces of various two-dimensional hexagonal crystalline structures, considering their associated time-reversal $\m…
Impact of the Fizeau drag effect on Goos-Hänchen shifts in graphene
Rafi Ud Din, Muzamil Shah, Reza Asgari +1
We investigate the Goos-Hänchen shifts in reflection for a light beam within a graphene structure, utilizing the Fizeau drag effect induced by its massless Dirac electrons in incid…
Modulating dichroism and optical conductivity in bilayer graphene under intense electromagnetic field irradiation
S. Sajad Dabiri, Hosein Cheraghchi, Fatemeh Adinehvand +1
This study explores the impact of a strong perpendicular laser field on the electronic structure and optical conductivity of bilayer graphene. Employing the Floquet-Bloch theorem a…
Two-dimensional natural hyperbolic materials: From polaritons modulation to applications
Guangyi Jia, Jinxuan Luo, Huaiwen Wang +4
Natural hyperbolic materials (HMs) in two dimensions (2D) have an extraordinarily high anisotropy and a hyperbolic dispersion relation. Some of them can even sustain hyperbolic pol…