Journal
JOURNAL OF OPTICS
Volume 18, Issue 12, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/2040-8978/18/12/124002
Keywords
liquid-crystal devices; laser beam shaping; optical vortices
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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 +/- 200 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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