Gaussian beams with very high orbital angular momentum

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

doi:10.1016/S0030-4018(97)00376-3

Gaussian beams with very high orbital angular momentum

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

Department of Physics

Research output: Contribution to journal › Article › peer-review

164 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 language	English
Pages (from-to)	210-213
Number of pages	4
Journal	Optics Communications
Volume	144
Issue number	4-6
DOIs	https://doi.org/10.1016/S0030-4018(97)00376-3
Publication status	Published - 1997 Dec 15

Bibliographical note

Funding Information:
This work is supported by EPSRC; MJP is a Royal Society Research Fellow; KD is a Royal Society of Edinburgh ResearchF ellow.

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

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10.1016/S0030-4018(97)00376-3

Cite this

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author = "J. Courtial and K. Dholakia and L. Allen and Padgett, {M. J.}",

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AU - Courtial, J.

AU - Dholakia, K.

AU - Allen, L.

AU - Padgett, M. J.

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PY - 1997/12/15

Y1 - 1997/12/15

N2 - 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.

AB - 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.

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Gaussian beams with very high orbital angular momentum

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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