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Angular momentum flux of counterpropagating paraxial beams

Alexeyev, Constantine N.; Yavorsky, Maxim A.; Shvedov, Vladlen G.


We study the angular momentum (AM) of the arbitrary superposition of counterpropagating paraxial beams that have the same magnitude of the wavenumber. We derive compact analytical expressions for the total AM in a transverse cross section (linear AM density) and the total AM flux through the cross section. We demonstrate that whereas for the time-averaged linear AM density its separation into the spin and orbital parts is not, generally, observed, the total time-averaged AM flux is separated...[Show more]

CollectionsANU Research Publications
Date published: 2008
Type: Journal article
Source: Journal of the Optical Society of America A
DOI: 10.1364/JOSAA.25.000643


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