Open AccessCoherence modulation by deterministic rotating diffusers
Author(s) -
Joonas Lehtolahti,
Markku Kuittinen,
Jari Turunen,
Jani Tervo
Publication year - 2015
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.010453
Subject(s) - optics , diffuser (optics) , coherence (philosophical gambling strategy) , physics , axial symmetry , modulation (music) , light beam , gaussian beam , degree of coherence , diffraction , gaussian , coherence theory , coherence length , beam (structure) , acoustics , light source , quantum mechanics , superconductivity
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.