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arXiv · 1207.6293

Observation of nonspecular effects for Gaussian Schell-model light beams

Michele Merano·Gabriele Umbriaco·Giampaolo Mistura
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Abstract

We investigate experimentally the role of spatial coherence on optical beam shifts. This topic has been the subject of recent theoretical debate. We consider Gaussian Schell-model beams, with different spatial degrees of coherence, reflected at an air-glass interface. We prove that the angular Goos-H\"anchen and the angular Imbert-Fedorov effects are affected by the spatial degree of coherence of the incident beam, whereas the spatial Goos-H\"anchen effect does not depend on incoherence. Our data unambiguously resolve the theoretical debate in favour of one specific theory.

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Michele Merano, Gabriele Umbriaco, Giampaolo Mistura. 2012-07-26. Observation of nonspecular effects for Gaussian Schell-model light beams. https://doi.org/10.1103/physreva.86.033842

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