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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 28, Iss. 12 — Jun. 15, 2003
  • pp: 1004–1006

Direct coarse sampling of electronic h olograms

Kedar Khare and Nicholas George  »View Author Affiliations


Optics Letters, Vol. 28, Issue 12, pp. 1004-1006 (2003)
http://dx.doi.org/10.1364/OL.28.001004


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Abstract

We describe a series of experiments in order to test a new sampling criterion for wavefront reconstruction from a carrier-frequency signal as obtained in electronic holography. Both a Fourier-transform configuration and a Fresnel-zone form of a digital holographic microscope are described. Direct coarse sampling of holograms with no phase-shifting elements can be used to obtain wavefront reconstruction, with the number of samples required reduced by the ratio f0/(2Bs), where f0 is the carrier frequency and 2Bs is the signal bandwidth.

© 2003 Optical Society of America

OCIS Codes
(070.0070) Fourier optics and signal processing : Fourier optics and signal processing
(090.1760) Holography : Computer holography
(100.2650) Image processing : Fringe analysis
(100.3010) Image processing : Image reconstruction techniques
(100.5070) Image processing : Phase retrieval
(120.2650) Instrumentation, measurement, and metrology : Fringe analysis

Citation
Kedar Khare and Nicholas George, "Direct coarse sampling of electronic h olograms," Opt. Lett. 28, 1004-1006 (2003)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-28-12-1004


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References

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