Experiments on Linear and Nonlinear Localization of Optical Vortices in Optically Induced Photonic Lattices
Experimental results of bandgap guidance of a vortex beam in a tunable negative defect. (a) Vortex at input. (b)–(d) Induced lattices with nonzero-intensity defect, no defect, and zero-intensity defect, respectively. (e), (f) Vortex output from the defect in (b) and its zoom-in interferogram. The circles in (f) mark the location of the vortex pairs. (g) Interferogram when the vortex is excited at nondefect site. (h) Vortex diffraction output when lattice is absent.
Article of the Year Award: Outstanding research contributions of 2020, as selected by our Chief Editors. Read the winning articles.