Measurement of the rotational frequency shift imparted to a rotating light beam possessing orbital angular momentum

J. Courtial; K. Dholakia; D. A. Robertson; L. Allen; M. J. Padgett

doi:10.1103/PhysRevLett.80.3217

Measurement of the rotational frequency shift imparted to a rotating light beam possessing orbital angular momentum

J. Courtial, K. Dholakia, D. A. Robertson, L. Allen, M. J. Padgett

Department of Physics

Research output: Contribution to journal › Article

182 Citations (Scopus)

Abstract

We observe the frequency shift, lΩ, imparted to a mm-wave beam with an orbital angular momentum of lħ per photon, when the beam is rotated at angular frequency Ω. We show that thisshift, and those found in a number of experiments on the rotation of circularly polarized beams, are special cases of the rotational frequency shift recently predicted by Bialynicki-Birula and Bialynicka-Birula. The measurement also explicitly confirms a theoretical prediction by Nienhuis.

Original language	English
Pages (from-to)	3217-3219
Number of pages	3
Journal	Physical Review Letters
Volume	80
Issue number	15
DOIs	https://doi.org/10.1103/PhysRevLett.80.3217
Publication status	Published - 1998 Jan 1

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All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

Cite this

Courtial, J., Dholakia, K., Robertson, D. A., Allen, L., & Padgett, M. J. (1998). Measurement of the rotational frequency shift imparted to a rotating light beam possessing orbital angular momentum. Physical Review Letters, 80(15), 3217-3219. https://doi.org/10.1103/PhysRevLett.80.3217

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AU - Allen, L.

AU - Padgett, M. J.

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10.1103/PhysRevLett.80.3217