Scientists have, for the first time, demonstrated Young’s experiment for photons in the reciprocal space. Spin patterns corresponding to the persistent spin helix and the Stern-Gerlach experiment are realized in an optically anisotropic liquid crystal microcavity. By applying electric voltage across the microcavity, the liquid crystal molecules inside could be rotated in such a way that the light passing through the cavity was forced to change its internal state into right- and left-handed circular polarized components.
Click here for original story, The optical Stern-Gerlach Deflection and Young’s experiment in the reciprocal space
Source: Phys.org