348 citations · 444 across the 10 of their papers we have counts for
10 papers
Intrinsic angular momentum, spin and helicity of higher-order Poincare modes
Mohamed Babiker, Koray Koksal, Vassilis Lembessis +1
The availability of coherent sources of higher order Poincare optical beams have opened up new opportunities for applications such as in the optical trapping of atoms and small par…
Super-chirality of paraxial higher order Poincare modes
Mohamed Babiker, Jun Yuan, Koray Koksal +1
We demonstrate that higher order Poincare modes of order m are super-chiral, displaying enhancement factors proportional to and in their helicity/chirality. With m having…
Chirality and helicity of optical vortices of small beam waists
Koray Koksal, Mohamed Babiker, Vassilis E. Lembessis +1
The chirality and helicity of linearly polarised Laguerre-Gaussian (LG) beams are examined. Such a type of light possesses a substantial longitudinal field when its beam waist is s…
Cold atoms interacting with highly twisted laser beams mimic the forces involved in Millikan's experiment
V. E. Lembessis
This paper considers the analogy between the force exerted on cold atoms when they interact with a highly twisted tightly focused laser beam and the forces exerted on a charged die…
Rotating Optical Tubes: An Archimedes' Screw for Atoms
Anwar Al Rsheed, Andreas Lyras, Omar M. Aldossary +1
The classical dynamics of a cold atom trapped inside a vertical rotating helical optical tube (HOT) is investigated by taking also into account the gravitational field. The resulti…
Quantum Hall Physics with Cold Atoms in Cylindrical Optical Lattices
Mateusz Łącki, Hannes Pichler, Antoine Sterdyniak +5
We propose and study various realizations of a Hofstadter-Hubbard model on a cylinder geometry with fermionic cold atoms in optical lattices. The cylindrical optical lattice is cre…
Radiation pattern of two identical emitters driven by a Laguerre-Gaussian beam: An atom nanoantenna
Vassilis E. Lembessis, Andreas Lyras, Anwar Al Rsheed +2
We study the directional properties of a radiation field emitted by a geometrically small system composed of two identical two-level emitters located at short distances and driven…
Evanescent Artificial Gauge Potentials for Neutral Atoms
V. E. Lembessis
We show that atoms interacting with evanescent light fields, generated at the interface of a dielectric with vacuum, experience artificial gauge potentials. These potentials depend…
Two-atom system as a nano-antenna for mode switching and light routing
Vassilis E. Lembessis, Anwar Al Rsheed, Omar M. Aldossary +1
We determine how a system composed of two nonidentical two-level atoms with different resonance frequencies and different damping rates could work as a nano-antenna for controlled…
Optical ferris wheel for ultracold atoms
S. Franke-Arnold, J. Leach, M. J. Padgett +6
We propose a versatile optical ring lattice suitable for trapping cold and quantum degenerate atomic samples at discrete angular positions. We demonstrate the realisation of intens…