Light beams with very high orbital angular momentum

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

Light beams with very high orbital angular momentum

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

Department of Physics

Research output: Contribution to conference › Paper › peer-review

Abstract

A mathematical treatment has been given to define the angular momentum per photon transferred to a collimated elliptical Gaussian beam with beam waists w_x and w_y and wave number k incident on a cylindrical lens of focal length f, aligned at an angle of α to the axes of the elliptical mode. The orbital angular momentum is limited only by the f number and the aperture of the lens and in the visible may be as high as 10,000 A per photon. The beam propagation was computer modelled and interference experiments were performed between the elliptical beams and plane waves to enable the phase structure of the elliptical beams to be viewed directly.

Original language	English
Pages	141-142
Number of pages	2
Publication status	Published - 1997
Event	Proceedings of the 1997 Conference on Quantum Electronics and Laser Science, QELS - Baltimore, MD, USA Duration: 1997 May 18 → 1997 May 23

Conference

Conference	Proceedings of the 1997 Conference on Quantum Electronics and Laser Science, QELS
City	Baltimore, MD, USA
Period	97/5/18 → 97/5/23

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

Cite this

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title = "Light beams with very high orbital angular momentum",

abstract = "A mathematical treatment has been given to define the angular momentum per photon transferred to a collimated elliptical Gaussian beam with beam waists wx and wy and wave number k incident on a cylindrical lens of focal length f, aligned at an angle of α to the axes of the elliptical mode. The orbital angular momentum is limited only by the f number and the aperture of the lens and in the visible may be as high as 10,000 A per photon. The beam propagation was computer modelled and interference experiments were performed between the elliptical beams and plane waves to enable the phase structure of the elliptical beams to be viewed directly.",

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

year = "1997",

language = "English",

pages = "141--142",

note = "Proceedings of the 1997 Conference on Quantum Electronics and Laser Science, QELS ; Conference date: 18-05-1997 Through 23-05-1997",

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TY - CONF

T1 - Light beams with very high orbital angular momentum

AU - Courtial, J.

AU - Dholakia, K.

AU - Allen, L.

AU - Padgett, M. J.

PY - 1997

Y1 - 1997

N2 - A mathematical treatment has been given to define the angular momentum per photon transferred to a collimated elliptical Gaussian beam with beam waists wx and wy and wave number k incident on a cylindrical lens of focal length f, aligned at an angle of α to the axes of the elliptical mode. The orbital angular momentum is limited only by the f number and the aperture of the lens and in the visible may be as high as 10,000 A per photon. The beam propagation was computer modelled and interference experiments were performed between the elliptical beams and plane waves to enable the phase structure of the elliptical beams to be viewed directly.

AB - A mathematical treatment has been given to define the angular momentum per photon transferred to a collimated elliptical Gaussian beam with beam waists wx and wy and wave number k incident on a cylindrical lens of focal length f, aligned at an angle of α to the axes of the elliptical mode. The orbital angular momentum is limited only by the f number and the aperture of the lens and in the visible may be as high as 10,000 A per photon. The beam propagation was computer modelled and interference experiments were performed between the elliptical beams and plane waves to enable the phase structure of the elliptical beams to be viewed directly.

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M3 - Paper

AN - SCOPUS:0030713745

SP - 141

EP - 142

T2 - Proceedings of the 1997 Conference on Quantum Electronics and Laser Science, QELS

Y2 - 18 May 1997 through 23 May 1997

ER -

Light beams with very high orbital angular momentum

Abstract

Conference

All Science Journal Classification (ASJC) codes

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