Fig. 3
From: Spin-orbit-locked hyperbolic polariton vortices carrying reconfigurable topological charges
Polariton vortex phase accumulation vs azimuthal angle for m = 1, 2 and 4 when l = 1 and 2, and Au disk images and kt dispersion for polaritonic vortices with m = 1, 2. a, φPP and ϕ denote the accumulated phase and azimuthal angle, respectively. b,c AFM images of Au disk with one (b) and two (c) left-handed Archimedean spiral arms. d Dispersion of kt for samples in (b,c). Orange dots and navy curve are experimental and calculated results, respectively