Photorefractive digital holographic microscopy applied in microstructures analysis

Isis V. Brito, Marcos R.R. Gesualdi, Jorge Ricardo, Francisco Palácios, Mikiya Muramatsu, JOSE LUIS VALIN RIVERA

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

In this work, we present a Photorefractive Digital Holographic Microscopy (PRDHM) technique based on the writing-reading holographic process in photorefractive Bi 12TiO 20 (BTO) crystal and the obtainment of phase and amplitude of the object wave were performed by a digital holographic method. We demonstrate that the wave diffracted by a photorefractive hologram recorded in a BTO crystal can be combined with a reference wave to record a second hologram in a CCD sensor in a configuration of digital holographic microscopy. The experimental measurements were performed on samples like red blood cells and a thin film structure, and were obtained quantitative values of amplitude and phase of the object wave, as well as 3D graphs, of the analyzed samples by the digital reconstruction holographic method. This technique presents a new method in replacement of the usual methods for reconstruction of holograms recorded in a photorefractive crystal and also presents the possibilities to obtain 3D phase images for surfaces characterization and applications in dynamic holography.

Original languageEnglish
Pages (from-to)103-110
Number of pages8
JournalOptics Communications
Volume286
Issue number1
DOIs
StatePublished - 1 Jan 2013

Keywords

  • 3D phase images
  • Digital Holographic Microscopy
  • Microstructures analysis
  • Photorefractive crystals
  • Photorefractive Holographic Microscopy
  • Photorefractive holography

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