28 citations · 29 across the 2 of their papers we have counts for
6 papers · 1 filter
Ultraprecise Rydberg atomic localization using optical vortices
Ning Jia, Teodora Kirova, Gediminas Juzeliunas +2
We propose a robust localization of the highly-excited Rydberg atoms, interacting with doughnut-shaped optical vortices. Compared with the earlier standing-wave (SW)-based localiza…
Control of nonlinear optical phenomena and spatially structured optical effects in a four-level quantum system near a plasmonic nanostructure
Hamid Reza Hamedi, Vassilios Yannopapas, Emmanuel Paspalakis
We investigate the nonlinear optical response of a four-level double-V-type quantum system interacting with a pair of weak probe fields while located near a two-dimensional array o…
Off-axis optical vortices using double-Raman singlet and doublet light-matter schemes
Hamid Reza Hamedi, Julius Ruseckas, Emmanuel Paspalakis +1
We study the formation of off-axis optical vortices propagating inside a double-Raman gain atomic medium. The atoms interact with two weak probe fields as well as two strong pump b…
Complete energy conversion between light beams carrying orbital angular momentum using coherent population trapping for a coherently driven double-Λatom-light coupling
Hamid Reza Hamedi, Emmanuel Paspalakis, Giedrius Žlabys +2
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 double-Λatom…
Transfer of optical vortices in coherently prepared media
Hamid Reza Hamedi, Julius Ruseckas, Emmanuel Paspalakis +1
We consider transfer of optical vortices between laser pulses carrying orbital angular momentum (OAM) in a cloud of cold atoms characterized by the configuration of the atom-li…
Electromagnetically induced transparency and nonlinear pulse propagation in a combined tripod and atom-light coupling scheme
H. R. Hamedi, J. Ruseckas, G. Juzeliūnas
We consider propagation of a probe pulse in an atomic medium characterized by a combined tripod and Lambda () atom-light coupling scheme. The scheme involves three atomic ground…