Spin-orbit interactions and chiroptical effects engaging orbital angular momentum of twisted light in chiral and achiral media

KA Forbes, DL Andrews - Physical Review A, 2019 - APS
There is recurrent interest in the orbital angular momentum (OAM) conveyed by optical
vortices, which are structured beams with a helically twisted wave front. Particular …

Interaction of atom with nonparaxial Laguerre-Gaussian beam: Forming superposition of vortex states in Bose-Einstein condensates

A Bhowmik, PK Mondal, S Majumder, B Deb - Physical Review A, 2016 - APS
The exchange of orbital angular momentum (OAM) between paraxial optical vortex and a
Bose-Einstein condensate (BEC) of atomic gases is well known. In this paper, we develop a …

[HTML][HTML] Pattern formation and evidence of quantum turbulence in binary Bose-Einstein condensates interacting with a pair of Laguerre-Gaussian laser beams

MG Dastidar, S Das, K Mukherjee, S Majumder - Physics Letters A, 2022 - Elsevier
We theoretically investigate the out-of-equilibrium dynamics in binary Bose-Einstein
condensate confined within two-dimensional box potentials. One species of the condensate …

Collectively induced many-vortices topology via rotatory Dicke quantum phase transition

P Das, ME Tasgin, ÖE Müstecaplıoğlu - New Journal of Physics, 2016 - iopscience.iop.org
We examine the superradiance of a Bose–Einstein condensate pumped with a Laguerre–
Gaussian laser of high winding number, eg, ${\ell}= 7$. The laser beam transfers its orbital …

Tuning of non-paraxial effects of the Laguerre-Gaussian beam interacting with the two-component Bose–Einstein condensates

A Bhowmik, S Majumder - Journal of Physics Communications, 2018 - iopscience.iop.org
We present the theory of microscopic interaction of the spin-orbit coupled focused Laguerre-
Gaussian beam with the two-component Bose–Einstein condensate, composed of two …

Density profiles of two-component Bose–Einstein condensates interacting with a Laguerre–Gaussian beam

A Bhowmik, PK Mondal, S Majumder… - Journal of Physics B …, 2018 - iopscience.iop.org
The density profiles of trapped two-component Bose–Einstein condensates (BEC) and its
microscopic interaction with Laguerre–Gaussian (LG) beam are studied. We consider the 87 …

Orbital Angular Momentum Conversion of Acoustic Vortex Beams via Planar Lattice Coupling

Q Han, Z Liu, C Yi, S Wu, Y Luo, Z Yang… - Chinese …, 2024 - iopscience.iop.org
The orbital angular momentum (OAM) conversion is critical in understanding the interaction
between the structural sound field and a planar lattice. Herein, we explored the evolution of …

Evolution behavior of mixed screw-edge dislocations propagating through atmospheric turbulence

P Gao, L Bai, Z Wang, J Li, L Guo - Applied Physics B, 2018 - Springer
In this paper we studied the evolution of an optical vortex and an edge dislocation in
atmospheric turbulence, It is shown that when mixed screw-edge dislocations beams …

Optical spin-orbit interactions in molecular scattering of twisted light

KA Forbes, DL Andrews - Complex Light and Optical Forces …, 2019 - spiedigitallibrary.org
The unique role that electric quadrupole transition moments can play in chiroptical
interactions has recently been established with twisted light beams. Manifesting a spin-orbit …