Measuring the orbital angular momentum of a single photon

Leach, J. and Padgett, M.J. and Barnett, S.M. and Franke-Arnold, S. and Courtial, J. (2002) Measuring the orbital angular momentum of a single photon. Physical Review Letters, 88 (25). pp. 257901-1. ISSN 0031-9007

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Abstract

We propose an interferometric method for measuring the orbital angular momentum of single photons. We demonstrate its viability by sorting four different orbital angular momentum states, and are thus able to encode two bits of information on a single photon. This new approach has implications for entanglement experiments, quantum cryptography and high density information transfer.

Author(s):Leach, J., Padgett, M.J., Barnett, S.M., Franke-Arnold, S. and Courtial, J.
Item type:Article
ID code:2868
Keywords:photons, orbital angular momentum, entanglement, quantum cryptography, high density information transfer, photonics, optics, Optics. Light, Physics and Astronomy(all)
Subjects:Science > Physics > Optics. Light
Department:Faculty of Science > Physics
Depositing user: Mr Derek Boyle
Date deposited:05 Feb 2007
Last modified:06 Sep 2019 03:00
URI:https://strathprints.strath.ac.uk/id/eprint/2868
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