Gaussian beams with very high orbital angular momentum

J. Courtial, K. Dholakia, L. Allen, M. J. Padgett

Research output: Contribution to journalArticle

115 Citations (Scopus)

Abstract

An elliptical Gaussian beam focussed by a cylindrical lens can possess large amounts of orbital angular momentum. We give an expression for the angular momentum, which arises from the azimuthal component of the Poynting vector, and show that it can be as high as 10 000ℏ per photon. We examine the phase distribution of the beams in an interference experiment.

Original languageEnglish
Pages (from-to)210-213
Number of pages4
JournalOptics Communications
Volume144
Issue number4-6
DOIs
Publication statusPublished - 1997 Dec 15

Fingerprint

Gaussian beams
Angular momentum
angular momentum
orbitals
Lenses
Photons
lenses
interference
photons
Experiments

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

Cite this

Courtial, J. ; Dholakia, K. ; Allen, L. ; Padgett, M. J. / Gaussian beams with very high orbital angular momentum. In: Optics Communications. 1997 ; Vol. 144, No. 4-6. pp. 210-213.
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Gaussian beams with very high orbital angular momentum. / Courtial, J.; Dholakia, K.; Allen, L.; Padgett, M. J.

In: Optics Communications, Vol. 144, No. 4-6, 15.12.1997, p. 210-213.

Research output: Contribution to journalArticle

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