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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 7 — Apr. 1, 2014
  • pp: 2086–2089

Enhancing spatial resolution in digital holographic microscopy by biprism structured illumination

Emilio Sánchez-Ortiga, Manuel Martínez-Corral, Genaro Saavedra, and Jorge Garcia-Sucerquia  »View Author Affiliations


Optics Letters, Vol. 39, Issue 7, pp. 2086-2089 (2014)
http://dx.doi.org/10.1364/OL.39.002086


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Abstract

A novel and efficient architecture of a structured-illumination digital holographic microscope (DHM) is presented. As the DHM operates at the diffraction limit, its spatial resolution on label-free imaging of transparent samples is improved by illuminating the sample with a structured illumination produced by a Fresnel’s biprism. The theoretical analysis of the method forecasts a twofold improvement of the spatial resolution. The proposed method requires only two images to improve the spatial resolution, which eases the process of unmixing the high-resolution components by means of an unknown phase-shift procedure. Numerical modeling and experimental results validate the theoretical findings.

© 2014 Optical Society of America

OCIS Codes
(100.6640) Image processing : Superresolution
(110.0180) Imaging systems : Microscopy
(260.1960) Physical optics : Diffraction theory
(090.1995) Holography : Digital holography

ToC Category:
Holography

History
Original Manuscript: October 3, 2013
Revised Manuscript: February 24, 2014
Manuscript Accepted: March 7, 2014
Published: March 27, 2014

Virtual Issues
Vol. 9, Iss. 6 Virtual Journal for Biomedical Optics

Citation
Emilio Sánchez-Ortiga, Manuel Martínez-Corral, Genaro Saavedra, and Jorge Garcia-Sucerquia, "Enhancing spatial resolution in digital holographic microscopy by biprism structured illumination," Opt. Lett. 39, 2086-2089 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-7-2086


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