Figure 1

Figure 1: Schematic illustration of the spin Hall effect of light (SHEL). When a linearly polarized light beam is incident obliquely on an interface between two media with different indices of refraction, its circularly polarized components with opposite helicities (σ+ and σ-) are separated spatially in the direction perpendicular to the plane of incidence, as shown. The separation is on the subwavelength scale, but can easily reach values of 200 nm or more, and can be tuned by varying the angle of incidence.