Fig. 4: Experimental results.
From: Optical skyrmions from metafibers with subwavelength features
a The physical picture of the whole device (upper). The SEM of the whole metasurface (lower) and the top view of local metasurface (inset). b The complex amplitude profiles of the simulation (upper) and experimental results (lower). Scale bar: 0.5 μm. c The Stokes polarization distributions of skyrmion (left) and bimeron (right) of the simulation (upper) and experiment (lower), respectively. The colormap is in the middle. d The skyrmion density and polarization distribution of the skyrmion state in experiments. Scale bar: 0.5 μm. Nsk: skyrmion numbers. ρsk: skyrmion density. e The normalized Stokes parameter and its absolute value versus x of skyrmion (left) and bimeron (right) states, inserted with the vector distributions of experiment results. λ: light wavelength.
