Extended depth of field using a liquid crystal annular spatial light modulator

Iftach Klapp, Asi Solodar, Ibrahim Abdulhalim

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

A detailed investigation is presented on the tunable extended depth of field (EDOF) method, proposed recently by Klapp et al. [Opt. Lett. 39, 1414 (2014)]. This method is based on temporal multiplexing of phase masks, using an annular liquid crystal spatial light modulator possessing a small number of rings. Examples of 3D simulations used todetermine the phase profilesin the pupil plane are presented, as well as more detailed experimental results. Both the experimental and numerical results include comprehensive analysis of contrast dependence on both the spatial spectrum of the object and the amount of defocus. In addition, for the first time, we present the EDOF order inversion in the experimental and simulated data. The results show a profound performance of the proposed system and method.

Original languageEnglish
Pages (from-to)4301-4312
Number of pages12
JournalApplied Optics
Issue number19
DOIs
StatePublished - 1 Jul 2014

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering

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