Author:
Gao Jiannan,Tsvetkov Dmitrii,Pires Danilo Gomes M,Xu Yun,Kravchenko Ivan,Feng Liang,Litchinitser Natalia M.
Abstract
We experimentally demonstrate the simultaneous generation of phase-locked structured light beams, including optical vortices, Hopf links, and trefoil knots at fundamental and tripled frequencies in all-dielectric nonlinear optical metasurfaces.