Active Light Shaping using GPC.

Jesper Glückstad, Darwin Palima, Mark Jayson Villangca, Andrew Rafael Bañas

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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. First, a compact GPC Light Shaper implementation based on our latest theoretical derivations is used to demonstrate the benefits for typical applications where lasers have to be actively shaped into particular light patterns. We then show 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.
Original languageEnglish
Publication date2015
Number of pages4
Publication statusPublished - 2015
EventX International Workshop on Adaptive Optics for Industry and Medicine - CNR-Institute of Photonics, Padova, Italy
Duration: 15 Jun 201519 Jun 2015
Conference number: 10


ConferenceX International Workshop on Adaptive Optics for Industry and Medicine
LocationCNR-Institute of Photonics


  • Generalized Phase Contrast
  • Active Optics
  • Light Shaping

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