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 1079-7114 (http://dx.doi.org/10.1103/PhysRevLett.88.257901)

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.

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• Item metadata

  Item type:	Article
  ID code:	2868
  Dates:	Date Event 24 June 2002 Published
  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:	19 May 2023 01:00
  URI:	https://strathprints.strath.ac.uk/id/eprint/2868