Fig. 4: High Accuracy full Stokes polarization detection.
From: Chip-integrated metasurface full-Stokes polarimetric imaging sensor
a–e Full Stokes polarization detection in dual color and different incidence angles. a A schematic of the customized experimental setup for generating arbitrary polarization states for full Stokes polarization detection, φ denotes the camera rotation in azimuth angle for oblique incidence measurement. Here parabolic mirror, 2 iris and 2 lens were applied to generate a collimated beam with divergence angle of less than 0.5°, unit: mm. b, c Illustration of measured polarization state (Red dot) and its input reference (Triangle) distribution on Poincaré sphere in red and green color, respectively. d Error distribution for Red/Green color full Stokes parameter detection measurement result. e AOP, DOLP, and DOCP detection error distributions of all MPFA pixels for polarization state D at normal incidence and oblique incidence of red color (left) and green color (right). In all the plots, x-axes represent the errors, and y axes represent the corresponding percentage of pixels
