Gouy Phase Radial Mode Sorter for Light: Concepts and Experiments

29 Aug 2018  ·  Gu Xuemei, Krenn Mario, Erhard Manuel, Zeilinger Anton ·

We present an in principle lossless sorter for radial modes of light, using accumulated Gouy phases. The experimental setups have been found by a computer algorithm, and can be intuitively understood in a geometric way... Together with the ability to sort angular-momentum modes, we now have access to the complete 2-dimensional transverse plane of light. The device can readily be used in multiplexing classical information. On a quantum level, it is an analog of the Stern-Gerlach experiment -- significant for the discussion of fundamental concepts in quantum physics. As such, it can be applied in high-dimensional and multi-photonic quantum experiments. read more

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Quantum Physics Optics