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arXiv · 2109.04297

Controlling spatial coherence with an optical complex medium

Alfonso Nardi·Felix Tebbenjohanns·Massimiliano Rossi·Shawn Divitt·Andreas Norrman·Sylvain Gigan·Martin Frimmer·Lukas Novotny
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Abstract

Control over optical spatial coherence is a key requirement in diverse applications including imaging, optical trapping, and communications. Current approaches to controlling spatial coherence are constrained by speed or limited to a single pair of optical fields. Here, we propose a method to achieve single-shot control of the spatial coherence between an arbitrary number of fields. Our method employs a multi-port linear optical device, which we realize by shaping the wavefront of the input light fields and transmitting them through a complex medium. To demonstrate the capabilities of our method, we experimentally realize a 3x3-port system and use it to generate three output beams with desired mutual correlations.

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Alfonso Nardi, Felix Tebbenjohanns, Massimiliano Rossi, Shawn Divitt, Andreas Norrman, Sylvain Gigan, Martin Frimmer, Lukas Novotny. 2021-09-09. Controlling spatial coherence with an optical complex medium. https://doi.org/10.1364/oe.442330

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