279 citations · 2.2k across the 34 of their papers we have counts for
14 papers · 1 filter
Zak Phase Dislocations in Trimer Lattices
Tileubek Uakhitov, Abdybek Urmanov, Serik E. Kumekov +1
Wave propagation in periodic media is governed by energy-momentum relation and geometric phases characterizing band topology, such as Zak phase in one-dimensional lattices. We demo…
Slow phonon vortices and defect modes in periodic nano-waveguides
Yue Sun, Anton S. Desyatnikov, Andrey A. Sukhorukov
We identify a broad class of phonon modes with persistent vortex fluxes at arbitrarily slow propagating velocities in periodic nano-waveguides. Such phonon vortices are associated…
Conical intersections for light and matter waves
Daniel Leykam, Anton S. Desyatnikov
We review the design, theory, and applications of two dimensional periodic lattices hosting conical intersections in their energy-momentum spectrum. The best known example is the D…
Lattice topology and spontaneous parametric down-conversion in quadratic nonlinear waveguide arrays
Daniel Leykam, Alexander S. Solntsev, Andrey A. Sukhorukov +1
We analyze spontaneous parametric down-conversion in various experimentally feasible 1D quadratic nonlinear waveguide arrays, with emphasis on the relationship between the lattice'…
Observation of transverse coherent backscattering in disordered photonic structures
Sebastian Brake, Martin Boguslawski, Daniel Leykam +2
We report on the experimental observation of weak localization in an optically induced disordered (2+1)-dimensional photonic structure. Our flexible method of optical induction is…
Discrete vortex solitons and PT symmetry
Daniel Leykam, Vladimir V. Konotop, Anton S. Desyatnikov
We study the effect of lifting the degeneracy of vortex modes with a PT symmetric defect, using discrete vortices in a circular array of nonlinear waveguides as an example. When th…