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Updated: Jun 11, 2026

Implementation of a Reference Interferometer for Nanodetection
Published on: April 26, 2014
Measuring optical vortices in a speckle pattern using a multi-pinhole interferometer
Gregorius C G Berkhout1, Marco W Beijersbergen
1Huygens Laboratory, Leiden University, Leiden, The Netherlands. j.berkhout@cosine.nl
Abstract:
We show that it is possible to find and characterise optical vortices in a speckle pattern using a multi-pinhole interferometer. This measurement does not require an interferometric setup, providing great experimental ease. In addition, a multi-pinhole interferometer can be made arbitrarily large and can therefore be adjusted to the expected speckle size. We present experimental results confirming our understanding.
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