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Proceedings Article

Orbital angular momentum induced beam shifts

[+] Author Affiliations
N. Hermosa, M. Merano, J. P. Woerdman

Leiden Univ. (Netherlands)

A. Aiello

Max Planck Institute for the Science of Light (Germany)

Proc. SPIE 7950, Complex Light and Optical Forces V, 79500F (February 16, 2011); doi:10.1117/12.876253
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From Conference Volume 7950

  • Complex Light and Optical Forces V
  • David L. Andrews; Enrique J. Galvez; Jesper Glückstad
  • San Francisco, California | January 22, 2011

abstract

We present experiments on Orbital Angular Momentum (OAM) induced beam shifts in optical reflection. Specifically, we observe the spatial Goos-Hänchen shift in which the beam is displaced parallel to the plane of incidence and the angular Imbert-Fedorov shift which is a transverse angular deviation from the geometric optics prediction. Experimental results agree well with our theoretical predictions. Both beam shifts increase with the OAM of the beam; we have measured these for OAM indices up to 3. Moreover, the OAM couples these two shifts. Our results are significant for optical metrology since optical beams with OAM have been extensively used in both fundamental and applied research.

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Citation

N. Hermosa ; M. Merano ; A. Aiello and J. P. Woerdman
"Orbital angular momentum induced beam shifts", Proc. SPIE 7950, Complex Light and Optical Forces V, 79500F (February 16, 2011); doi:10.1117/12.876253; http://dx.doi.org/10.1117/12.876253


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