Fig. 3: Realized PS trajectory encoding metasurface for thresholding functionality.
From: Poincaré sphere trajectory encoding metasurfaces based on generalized Malus’ law
a The designed pricewise trajectory \({\psi }_{l}=\left\{{0}^{o}\left(0\le {\chi }_{l}\le {45}^{o}\right);{90}^{o}\left({-45}^{o}\le {\chi }_{l}\le 0\right)\right\}\) under the linear basis of the PS. b Histogram transform curves at analyzer states 1: local north pole (ψA = 0°, χA = 0°), 2: local south pole (ψA = 90°, χA = 0°), and 3: (ψA = 35°, χA = 0°); (c–e) Decoded images and their transformed histograms at the analyzer states 1, 2, 3 respectively.
