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arXiv · 1608.06603

Arbitrary optical wavefront shaping via spin-to-orbit coupling

Hugo Larocque·Jérémie Gagnon-Bischoff·Frédéric Bouchard·Robert Fickler·Jeremy Upham·Robert W. Boyd·Ebrahim Karimi
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Abstract

Converting spin angular momentum to orbital angular momentum has been shown to be a practical and efficient method for generating optical beams carrying orbital angular momentum and possessing a space-varying polarized field. Here, we present novel liquid crystal devices for tailoring the wavefront of optical beams through the Pancharatnam-Berry phase concept. We demonstrate the versatility of these devices by generating an extensive range of optical beams such as beams carrying $\pm200$ units of orbital angular momentum along with Bessel, Airy and Ince-Gauss beams. We characterize both the phase and the polarization properties of the generated beams, confirming our devices' performance.

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Hugo Larocque, Jérémie Gagnon-Bischoff, Frédéric Bouchard, Robert Fickler, Jeremy Upham, Robert W. Boyd, Ebrahim Karimi. 2016-08-23. Arbitrary optical wavefront shaping via spin-to-orbit coupling. https://doi.org/10.1088/2040-8978%2F18%2F12%2F124002

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