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Shaping optical beams with topological charge

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Abstract

We show that by spatially arranging topological charges on a phase mask, it is possible to shape the spatial intensity profile of vortex beams in a controlled manner. As proof-of-principle experiments, we generated vortex beams with the spatial shape of straight lines, corners, and triangles. Potential applications for shaped beams include selective excitation of plasmonic modes, geometrically tunable Bose–Einstein condensates, and optical tweezers.

© 2013 Optical Society of America

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Media 2: MOV (106 KB)     

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