Focusing of wedge-generated higher-order optical vortices.
We experimentally show that when higher-order optical vortices generated by a system of dielectric wedges are subjected to focusing they do not lose their structural stability.
Izdebskaya
Ya
Y
Physical Department, Taurida National V. Vernadsky University, Vernadsky Avenue 4, Simferopol, 95007, Crimea, Ukraine.
Shvedov
V
V
Volyar
A
A