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Journal Article

Angular momenta and spin-orbit interaction of nonparaxial light in free space


Aiello,  Andrea
Optical Quantum Information Theory, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Bliokh, K. Y., Alonso, M. A., Ostrovskaya, E. A., & Aiello, A. (2010). Angular momenta and spin-orbit interaction of nonparaxial light in free space. PHYSICAL REVIEW A, 82(6): 063825. doi:10.1103/PhysRevA.82.063825.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002D-6A77-7
We give an exact self-consistent operator description of the spin and orbital angular momenta, position, and spin-orbit interactions of nonparaxial light in free space. Both quantum-operator formalism and classical energy-flow approach are presented. We apply the general theory to symmetric and asymmetric Bessel beams exhibiting spin-and orbital-dependent intensity profiles. The exact wave solutions are clearly interpreted in terms of the Berry phases, quantization of caustics, and Hall effects of light, which can be readily observed experimentally.