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arXiv · 1612.01629

Reply to comment on "Observation of subluminal twisted light in vacuum"

Frédéric Bouchard·Robert W. Boyd·Ebrahim Karimi
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Abstract

Recently, we showed experimentally that light carrying orbital angular momentum experiences a slight subluminality under free-space propagation [1]. We thank Saari [2] for pointing out an apparent discrepancy between our theoretical results and the well-known results for the simple case of Laguerre-Gauss modes. In this reply, we note that the resolution of this apparent discrepancy is the distinction between Laguerre-Gauss modes and Hypergeometric-Gauss modes, which were used in our experiment and in our theoretical analysis, which gives rise to different subluminal effects.

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Frédéric Bouchard, Robert W. Boyd, Ebrahim Karimi. 2016-12-06. Reply to comment on "Observation of subluminal twisted light in vacuum". https://arxiv.org/abs/1612.01629

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