Gaussian beams with very high orbital angular momentum

J Courtial; Kishan Dholakia; L Allen; MJ Padgett

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

Gaussian beams with very high orbital angular momentum

J Courtial, Kishan Dholakia, L Allen, MJ Padgett

School of Physics and Astronomy

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

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 10 000 (h) over bar per photon. We examine the phase distribution of the beams in an interference experiment. (C) 1997 Elsevier Science B.V.

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 - 15 Dec 1997

Keywords

astigmatism
laser beam propagation
angular momentum of light
LASER MODES
LIGHT-BEAMS

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10.1016/S0030-4018(97)00376-3

Cite this

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T1 - Gaussian beams with very high orbital angular momentum

AU - Courtial, J

AU - Dholakia, Kishan

AU - Allen, L

AU - Padgett, MJ

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 10 000 (h) over bar per photon. We examine the phase distribution of the beams in an interference experiment. (C) 1997 Elsevier Science B.V.

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 10 000 (h) over bar per photon. We examine the phase distribution of the beams in an interference experiment. (C) 1997 Elsevier Science B.V.

KW - astigmatism

KW - laser beam propagation

KW - angular momentum of light

KW - LASER MODES

KW - LIGHT-BEAMS

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U2 - 10.1016/S0030-4018(97)00376-3

DO - 10.1016/S0030-4018(97)00376-3

M3 - Article

SN - 0030-4018

VL - 144

SP - 210

EP - 213

JO - Optics Communications

JF - Optics Communications

IS - 4-6

ER -

Gaussian beams with very high orbital angular momentum

Abstract

Keywords

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