Quasi-intrinsic angular momentum and the measurement of its spectrum

Zambrini, Roberta and Barnett, S.M. (2006) Quasi-intrinsic angular momentum and the measurement of its spectrum. Physical Review Letters, 96 (11). pp. 113901-1. ISSN 1079-7114 (http://dx.doi.org/10.1103/PhysRevLett.96.113901)

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Abstract

We introduce the concept of quasi-intrinsic angular momentum to denote fields for which the mean value of the angular momentum is unaltered by a lateral shift of the rotation axis but the spectrum changes. This property is exemplified by the orbital angular momentum of a beam of light about its propagation direction. We propose an interferometric experiment to measure efficiently the exact angular momentum spectrum and variance for light beams with any arbitrary spatial distribution.

  • Item type:Article
    ID code:2870
    Dates:
    Date
    Event
    March 2006
    Published
    Subjects:Science > Physics > Optics. Light
    Department:Faculty of Science > Physics
    Depositing user: Mr Derek Boyle
    Date deposited:05 Feb 2007
    Last modified:11 Nov 2024 08:34
    URI:https://strathprints.strath.ac.uk/id/eprint/2870
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