Physics – Optics
Scientific paper
2005-08-15
Phys. Rev. Lett. 96, 073903 (2006)
Physics
Optics
5 pages, 2 pictures, note regarding experimental observation of the spin Hall effect of light is added, which is absent in the
Scientific paper
10.1103/PhysRevLett.96.073903
We present a solution to the problem of reflection/refraction of a polarized Gaussian beam on the interface between two transparent media. The transverse shifts of the beams' centers of gravity are calculated. They always satisfy the total angular momentum conservation law for beams, however, in general, do not satisfy the conservation laws for individual photons in consequence of the lack of the ``which path'' information in a two-channel wave scattering. The field structure for the reflected/refracted beam is analyzed. In the scattering of a linearly-polarized beam, photons of opposite helicities are accumulated at the opposite edges of the beam: this is the spin Hall effect for photons, which can be registered in the cross-polarized component of the scattered beam.
Bliokh Konstantin Yu.
Bliokh Yury P.
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