Coherence modulation by deterministic rotating diffusers

We design rotating diffusers with deterministic complex-amplitude transmission functions, which give rise to tailored spatial coherence modulation when transilluminated by an axially incident coherent Gaussian beam. Mathematical expressions are derived for the immediate diffuser output as well as fo...

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Bibliographic Details
Published in:Optics express 2015-04, Vol.23 (8), p.10453-10466
Main Authors: Lehtolahti, Joonas, Kuittinen, Markku, Turunen, Jari, Tervo, Jani
Format: Article
Language:English
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Summary:We design rotating diffusers with deterministic complex-amplitude transmission functions, which give rise to tailored spatial coherence modulation when transilluminated by an axially incident coherent Gaussian beam. Mathematical expressions are derived for the immediate diffuser output as well as for the far-field response. An experimental demonstration is given using a diffuser fabricated by lithographic techniques.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.23.010453