Weak measurements of a large spin angular splitting of light beam on   reflection at Brewster angle
  We reveal a large spin angular splitting of light beam on reflection at the Brewster angle both theoretically and experimentally. A simple weak measurements system manifesting itself for the built-in post-selection technique is proposed to explore this angular splitting. Remarkably, the directions of the spin accumulations can be switched by adjusting the initial handedness of polarization. 
Xinxing Zhou, Hailu Luo, and Shuangchun Wen
physics.optics