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Proceedings Paper

Orbital angular momentum induced beam shifts
Author(s): N. Hermosa; M. Merano; A. Aiello; J. P. Woerdman
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Paper 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.

Paper Details

Date Published: 16 February 2011
PDF: 7 pages
Proc. SPIE 7950, Complex Light and Optical Forces V, 79500F (16 February 2011); doi: 10.1117/12.876253
Show Author Affiliations
N. Hermosa, Leiden Univ. (Netherlands)
M. Merano, Leiden Univ. (Netherlands)
A. Aiello, Max Planck Institute for the Science of Light (Germany)
J. P. Woerdman, Leiden Univ. (Netherlands)

Published in SPIE Proceedings Vol. 7950:
Complex Light and Optical Forces V
David L. Andrews; Enrique J. Galvez; Jesper Glückstad, Editor(s)

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