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Annular SLM for imaging systems

  • Ibrahim Abdulhalim
  • Aug 29, 2021
  • 1 min read

Updated: 18 hours ago

A tunable extended depth of field (EDOF) imaging is presented using temporal multiplexing and a low-cost eight-ring, annular liquid crystal spatial light modulator.

Illustration of an annular spatial light modulator shaping light into concentric ring patterns for advanced imaging systems

Abstract

A tunable extended depth of field (EDOF) imaging is presented using temporal multiplexing and a low-cost eight-ring, annular liquid crystal spatial light modulator. By changing between different phase profiles in the pupil plane of a lens we perform several levels of EDOF. Using these levels as a “database” it is shown by temporal multiplexing how to decompose tunable levels of EDOF.


© 2014 Optical Society of America


Read the Full Research Article FULL ARTICLE 1

Tunable extended depth of field using a liquid crystal annular spatial filter: https://www.osapublishing.org/ol/abstract.cfm?uri=ol-39-6-1414


Read the Full Research Article FULL ARTICLE 2

Annular liquid crystal spatial light modulator for beam shaping and extended depth of focus: https://www.sciencedirect.com/science/article/abs/pii/S0030401814002247?via%3Dihub


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