Vectorial light–matter interaction: Exploring spatially structured complex light fields

J Wang, F Castellucci, S Franke-Arnold - AVS Quantum Science, 2020 - pubs.aip.org
Research on spatially structured light has seen an explosion in activity over the past
decades, powered by technological advances for generating such light and driven by …

Two-dimensional electromagnetically induced phase grating via composite vortex light

SH Asadpour, HR Hamedi, T Kirova, E Paspalakis - Physical Review A, 2022 - APS
We investigate the performance of a symmetrical two-dimensional electromagnetically
induced grating produced in a four-level N-type atomic scheme, which interacts with a weak …

Coherent transfer of optical vortices via backward four-wave mixing in a double- atomic system

C Meng, T Shui, WX Yang - Physical Review A, 2023 - APS
We propose and analyze an efficient scheme for the coherent transfer of optical vortices in a
cold atomic ensemble with four-level double-Λ configuration. The orbital angular-momentum …

Azimuthal modulation of electromagnetically induced grating using structured light

SH Asadpour, T Kirova, J Qian, HR Hamedi… - Scientific Reports, 2021 - nature.com
We propose a theoretical scheme for creating a two-dimensional Electromagnetically
Induced Grating in a three-level Λ-type atomic system interacting with a weak probe field …

Atomic compass: detecting 3D magnetic field alignment with vector vortex light

F Castellucci, TW Clark, A Selyem, J Wang… - Physical Review Letters, 2021 - APS
We describe and demonstrate how 3D magnetic field alignment can be inferred from single
absorption images of an atomic cloud. While optically pumped magnetometers …

Exchange of optical vortices in symmetry-broken quantum systems

SH Asadpour, E Paspalakis, HR Hamedi - Physical Review A, 2021 - APS
We investigate the interaction of laser pulses carrying orbital angular momentum (OAM) with
a symmetry-broken ladder-type quantum coupling scheme involving three internal states. A …

Creation and Control of Vortex‐Beam Arrays in Atomic Vapor

J Yuan, H Zhang, C Wu, G Chen… - Laser & Photonics …, 2023 - Wiley Online Library
Optical vortices, which are beams with spiral‐shaped wavefronts and screw phase
dislocations, have potential for supporting high‐capacity optical communications. In this …

Light-induced enhanced torque on double-V-type quantum emitters via quantum interference in spontaneous emission

HR Hamedi, J Ruseckas, V Yannopapas… - Optics & Laser …, 2023 - Elsevier
We consider interaction of a pair of counterpropagating spatially inhomogeneous weak
vortex beams with a quantum emitter that has a double-V level scheme and closely situated …

Complete energy conversion between light beams carrying orbital angular momentum using coherent population trapping for a coherently driven double- atom-light …

HR Hamedi, E Paspalakis, G Žlabys, G Juzeliūnas… - Physical Review A, 2019 - APS
We propose a procedure to achieve a complete energy conversion between laser pulses
carrying orbital angular momentum (OAM) in a cloud of cold atoms characterized by a …

Transfer of optical vortices in coherently prepared media

HR Hamedi, J Ruseckas, E Paspalakis, G Juzeliūnas - Physical Review A, 2019 - APS
We consider transfer of optical vortices between laser pulses carrying orbital angular
momentum in a cloud of cold atoms characterized by the Λ configuration of the atom-light …