Phase extraction in microscopy using tunable defocusing by means of a SLM

Luis Camacho, Vicente Micó, Zeev Zalevsky, Javier García

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In many practical microscopy applications the use of phase information is crucial. In this contribution we propose a method for phase extraction in a microscopy system based on analysis of images with varying defocusing. The system has no mobile parts owing to the defocusing by means of a spatial light modulator. The base of the method is the captre of images in a microscope with varying tube lens focal lengths. This produce a set of intensity images, all of them related, because the can be generated by free space propagation of a complex distribution which is unknown.

Original languageEnglish
Title of host publicationOptical Measurement Systems for Industrial Inspection VII
DOIs
StatePublished - 2011
EventOptical Measurement Systems for Industrial Inspection VII - Munich, Germany
Duration: 23 May 201126 May 2011

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8082

Conference

ConferenceOptical Measurement Systems for Industrial Inspection VII
Country/TerritoryGermany
CityMunich
Period23/05/1126/05/11

Keywords

  • Microscopy
  • Phase extraction
  • Spatial light modulator
  • Wavefront reconstruction

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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