Confocal imaging through scattering media with a volume holographic filter

Michal Balberg, George Barbastathis, Sergio Fantini, David J. Brady

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations


The use of a volume holographic filter as collector element in a confocal system imaging through scattering (turbid) material is described. We show that the penetration depth of the volume holographic system is de-coupled from the scatter noise discrimination properties, and is potentially more advantageous than the traditional confocal microscope. Since the volume-holographic filter is a matched-filter, the penetration depth is dependent on the mismatch of the refractive index of the sample being imaged relative to the recording conditions. We present a method to overcome this limitation based on using a pre-compensating index matching film during the recording of the volume hologram. An improvement of the penetration depth is shown experimentally.

Original languageEnglish (US)
Pages (from-to)69-74
Number of pages6
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 2000
Externally publishedYes
EventThree-Dimensional and Multidimensional Microscopy: Image Acquisition Processing VII - San Jose, CA, USA
Duration: Jan 23 2000Jan 24 2000

ASJC Scopus subject areas

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


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