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IV The Orbital Angular Momentum of Light

1999
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, and indicates the unapproximated theory, based on the full set of Maxwell equations.
L. Allen, M.J. Padgett, M. Babiker
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Perspectives on the orbital angular momentum of light

Journal of Optics, 2022
Abstract Orbital angular momentum (OAM) has been known and understood in mechanical systems for centuries, but far less venerable in optical systems. It was only 30 years ago that OAM was directly associated with the spatial structure of light, specifically its phase structure, allowing OAM carrying light to be ...
openaire   +1 more source

Control of orbital angular momentum of light with optical fibers

Optics Letters, 2012
We present a fiber-based method for generating vortex beams with a tunable value of orbital angular momentum from -1ℏ to +1ℏ per photon. We propose a new (to our knowledge) method to determine the modal content of the fiber and demonstrate high purity of the desired vortex state (97% after 20 m, even after bends and twists).
Nenad, Bozinovic, Steven, Golowich, Poul, Kristensen, Siddharth, Ramachandran   +3 more
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Quantitative measurement of the orbital angular momentum density of light

Applied Optics, 2012
In this work we derive expressions for the orbital angular momentum (OAM) density of light, for both symmetric and nonsymmetric optical fields, that allow a direct comparison between theory and experiment. We present a simple method for measuring the OAM density in optical fields and test the approach on superimposed nondiffracting higher-order Bessel ...
Angela, Dudley, Igor A, Litvin, Andrew, Forbes   +2 more
openaire   +2 more sources

Orbital angular momentum of polarization distributions of light

Journal of Optics
Abstract We investigate a new quantity for describing vector light fields with polarization singularities. Similar to the polarization singularity index (PSI), it describes the average angular velocity of the changing polarization direction.
Alexey A Kovalev, Victor V Kotlyar, Sergey S Stafeev   +2 more
openaire   +1 more source

Planning for post‐pandemic cancer care delivery: Recovery or opportunity for redesign?

Ca-A Cancer Journal for Clinicians, 2021
Pelin Cinar, Daniela A Bota, Kathryn A Gold   +2 more
exaly  

A roadmap for the commercialization of perovskite light emitters

Nature Reviews Materials, 2022
, Richard Friend, Edward H Sargent
exaly  

Visible Light-Driven Radical-Mediated C–C Bond Cleavage/Functionalization in Organic Synthesis

Chemical Reviews, 2021
Jia-Rong Chen, Wen-Jing Xiao
exaly  

Measurement of light's orbital angular momentum

2012
M. P. J. Lavery, J. Courtial, M. J. Padgett   +2 more
openaire   +1 more source

Photothermal Nanomaterials: A Powerful Light-to-Heat Converter

Chemical Reviews, 2023
Ximin Cui, Qifeng Ruan, Xiaolu Zhuo
exaly