Fig. 5: Experimental results for spatially nonuniform SoP analysis.
From: Neural network assisted high-spatial-resolution polarimetry with non-interleaved chiral metasurfaces
a Intensity distributions of the spatially nonuniform polarized incident beam. φ is the azimuth angle with respective to the drawn diameter. Focal plane intensity profiles of the chiral metasurface array with LCP (b) and RCP (c) bias. The scale bar is 10 μm. d–f Analysis of the Stokes parameters with the assistance of the proposed neural network. The number of the red points is in accordance with the position and azimuth angle in b and a. The dotted blue lines are the designed S parameters. g Schematics of the polarization distribution according to the measured S parameters. h Schematics of the designed polarization distribution
