activity
20082022
most citedOptical skyrmions in evanescent electromagnetic fields

494 citations · 844 across the 14 of their papers we have counts for

collaborators

15 papers

physics.optics2022★ 61 cited

Tunable photon-induced spatial modulation of free electrons

Shai Tsesses, Raphael Dahan, Kangpeng Wang +3

Spatial modulation of electron beams is an essential tool for various applications such as nanolithography and imaging, yet its implementations are severely limited and inherently…

cond-mat.mes-hall2019★ 4 cited

Attractive interactions, molecular complexes, and polarons in coupled dipolar exciton fluids

C. Hubert, K. Cohen, A. Ghazaryan +3

Dipolar (or spatially indirect) excitons (IXs) in semiconductor double quantum well (DQW) subjected to an electric field are neutral species with a dipole moment oriented perpendic…

cond-mat.quant-gas2018★ 20 cited

Attractive dipolar coupling between stacked exciton fluids

Colin Hubert, Yifat Baruchi, Yotam Mazuz-Harpaz +7

The interaction between aligned dipoles is long-ranged and highly anisotropic: it changes from repulsive to attractive depending on the relative positions of the dipoles. We report…

physics.optics2018★ 494 cited

Optical skyrmions in evanescent electromagnetic fields

S. Tsesses, E. Ostrovsky, K. Cohen +3

Topological defects play a key role in a variety of physical systems, ranging from high-energy to solid state physics. They yield fascinating emergent phenomena and serve as a brid…

cond-mat.quant-gas2017★ 7 cited

Transition from spin-orbit to hyperfine dominated spin relaxation in a cold fluid of dipolar excitons

Ran Finkelstein, Kobi Cohen, Benoit Jouault +4

We measure the spin-resolved transport of dipolar excitons in a biased GaAs double quantum well structure. From these measurements we extract both spin lifetime and mobility of the…

physics.optics2017

Nanoscale Control over Optical Dislocations

Evgeny Ostrovsky, Kobi Cohen, Bergin Gjonaj +1

High-order optical vortices are inherently unstable, as they tend to split up under perturbation to a series of vortices with unity charge. Control over the perturbation opens up a…