Spin and orbital Hall effects for diffracting optical beams in gradient-index media

Konstantin Y. Bliokh, Anton S. Desyatnikov

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    40 Citations (Scopus)

    Abstract

    We examine the evolution of paraxial beams carrying intrinsic spin and orbital angular momenta (AM) in gradient-index media. A parabolic-type equation is derived which describes the beam diffraction in curvilinear coordinates accompanying the central ray. The center of gravity of the beam experiences transverse AM-dependent deflections-the spin and orbital Hall effects. The spin Hall effect generates a transverse translation of the beam as a whole, in precise agreement with recent geometrical optics predictions. At the same time, the orbital Hall effect is significantly affected by the diffraction in the inhomogeneous medium and is accompanied by changes in the intrinsic orbital AM and deformations of the beam.

    Original languageEnglish
    Article number011807
    JournalPhysical Review A - Atomic, Molecular, and Optical Physics
    Volume79
    Issue number1
    DOIs
    Publication statusPublished - 5 Jan 2009

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