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arXiv · 1209.4534

Liquid crystal spatial-mode converters for the orbital angular momentum of light

Sergei Slussarenko·Bruno Piccirillo·Vladimir Chigrinov·Lorenzo Marrucci·Enrico Santamato
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Abstract

We present a tunable liquid crystal device that converts pure orbital angular momentum eigenmodes of a light beam into equal-weight superpositions of opposite-handed eigenmodes and vice versa. For specific input states, the device may thus simulate the behavior of a π/2 phase retarder in a given two-dimensional orbital angular momentum subspace, analogous to a quarter-wave plate for optical polarization. A variant of the same device generates the same final modes starting from a Gaussian input.

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Sergei Slussarenko, Bruno Piccirillo, Vladimir Chigrinov, Lorenzo Marrucci, Enrico Santamato. 2013-02-07. Liquid crystal spatial-mode converters for the orbital angular momentum of light. https://doi.org/10.1088/2040-8978%2F15%2F2%2F025406

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