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Orbital angular momentum: origins, behavior and applications
As they travel through space, some light beams rotate. Such light beams have angular momentum. There are two particularly important ways in which a light beam can rotate: if every polarization vectorExpand
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IV The Orbital Angular Momentum of Light
Publisher Summary This chapter discusses the orbital angular momentum of light, outlines the theoretical basis for the orbital angular momentum of beams within the paraxial approximation, andExpand
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Measuring the orbital angular momentum of a single photon.
We propose an interferometric method for measuring the orbital angular momentum of single photons. We demonstrate its viability by sorting four different orbital angular momentum states, and are thusExpand
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High-capacity millimetre-wave communications with orbital angular momentum multiplexing
One property of electromagnetic waves that has been recently explored is the ability to multiplex multiple beams, such that each beam has a unique helical phase front. The amount of phase frontExpand
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Free-space information transfer using light beams carrying orbital angular momentum.
We demonstrate the transfer of information encoded as orbital angular momentum (OAM) states of a light beam. The transmitter and receiver units are based on spatial light modulators, which prepare orExpand
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Efficient sorting of orbital angular momentum states of light.
We present a method to efficiently sort orbital angular momentum (OAM) states of light using two static optical elements. The optical elements perform a Cartesian to log-polar coordinateExpand
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Singular optics: optical vortices and polarization singularities
Publisher Summary The widespread availability of spatially and temporally coherent laser sources makes the production of optical vortices inevitable in any experiment involving scattered laser light.Expand
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Optical Angular Momentum
Spin angular momentum of photons, and the associated polarisation of light, has been known of for many years. However, it is only over the last decade or so that physically realisable laboratoryExpand
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Intrinsic and extrinsic nature of the orbital angular momentum of a light beam.
We explain that, unlike the spin angular momentum of a light beam which is always intrinsic, the orbital angular momentum may be either extrinsic or intrinsic. Numerical calculations of both spin andExpand
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