GPC and quantitative phase imaging

Darwin Palima (Invited author), Andrew Rafael Banas (Invited author), Mark Jayson Villangca (Invited author), Jesper Glückstad (Invited author)

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review


Generalized Phase Contrast (GPC) is a light efficient method for generating speckle-free contiguous optical distributions using binary-only or analog phase levels. It has been used in applications such as optical trapping and manipulation, active microscopy, structured illumination, optical security, parallel laser marking and labelling and recently in contemporary biophotonics applications such as for adaptive and parallel two-photon optogenetics and neurophotonics. We will present our most recent GPC developments geared towards these applications. We first show a very compact static light shaper followed by the potential of GPC for biomedical and multispectral applications where we experimentally demonstrate the active light shaping of a supercontinuum laser over most of the visible wavelength range. Finally, we discuss how GPC can be advantageously applied for Quantitative Phase Imaging (QPI). © (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Original languageEnglish
Title of host publicationProceedings of SPIE
EditorsGabriel Popescu, YongKeun Park
Number of pages6
PublisherSPIE - International Society for Optical Engineering
Publication date2016
Article number97182P
Publication statusPublished - 2016
EventQuantitative Phase Imaging II - The Moscone Center, San Francisco, California, United States
Duration: 13 Feb 201618 Feb 2016


ConferenceQuantitative Phase Imaging II
LocationThe Moscone Center
CountryUnited States
CitySan Francisco, California


  • Generalized Phase Contrast
  • Quantitative phase imaging
  • Beam patterning


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