Figure 4
Experimental setup and weak value measurement.
(a) Schematics of weak measurement with a variable retardance is shown with P1 = (1, 0)T and P2 = (0, 1) along with SEM image of Babinet complementary phase-gradient metasurface26. LCVR is liquid-crystal variable retarder and PSD is a quadrant position sensitive detector. See Methods for the detailed description of sample and measurement. (b) Light intensity transmitted through a cross polarizer/analyzer setup is plotted as a function of retardance Γ of LCVR. (c) Weak value of optical spin Hall shift post-selected with phase retardance is plotted as a function of retardance Γ of LCVR with the corresponding transverse shift. Blue solid circles are data point and dashed curves are from theoretical calculation.
