Observation of the rotational frequency shift for light with intrinsic and orbital angular momentum

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

Research output: Contribution to conferencePaper

Abstract

The frequency shift imparted to a light beam possessing angular momentum when the beam is rotated with respect to the observer and for light that is both circularly polarized and has an azimuthal phase structure was investigated. The light consequently possesses orbital angular momentum per photon in addition to the intrinsic angular momentum per photon. It is shown that the shift may be readily understood in terms of the shape of the phase fronts of the beam. The energy exchange between rotating half-wave plates and light beam with intrinsic spin and orbital angular momentum may also be interpreted as manifestations of the rotational frequency shift. The changes in the frequency for an arbitrary rotating light beam was also calculated.

Original languageEnglish
Pages139-140
Number of pages2
Publication statusPublished - 1998 Jan 1
EventProceedings of the 1998 International Quantum Electronics Conference - San Francisco, CA, USA
Duration: 1998 May 31998 May 8

Conference

ConferenceProceedings of the 1998 International Quantum Electronics Conference
CitySan Francisco, CA, USA
Period98/5/398/5/8

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Courtial, J., Dholakia, K., Allen, J., & Padgett, M. J. (1998). Observation of the rotational frequency shift for light with intrinsic and orbital angular momentum. 139-140. Paper presented at Proceedings of the 1998 International Quantum Electronics Conference, San Francisco, CA, USA, .