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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 41, Iss. 4 — Feb. 1, 2002
  • pp: 648–653

Digital-holographic interferometry with an image-intensifier system

Giancarlo Pedrini, Hans J. Tiziani, and Igor Alexeenko  »View Author Affiliations


Applied Optics, Vol. 41, Issue 4, pp. 648-653 (2002)
http://dx.doi.org/10.1364/AO.41.000648


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Abstract

A method for recording digital holograms on an image intensifier coupled with a CCD sensor is presented. The advantage of the image intensifier is that it can be gated (electronic shutter action produced by controlling of the image intensifier’s photocathode voltage). This allows us to record holograms with a short exposure time. Two holograms of an object submitted to dynamical displacements (e.g., vibrations) are recorded by two short exposures. The phase of the wave front recorded at different times is calculated from the recorded intensity by use of a digital Fourier-transform method. By comparison of the phases recorded it is possible to get the displacement of the object during a short interval. Experimental results are presented, and the problems related to the noise and to the spatial resolution are discussed.

© 2002 Optical Society of America

OCIS Codes
(040.0040) Detectors : Detectors
(090.2880) Holography : Holographic interferometry
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.2650) Instrumentation, measurement, and metrology : Fringe analysis

History
Original Manuscript: March 21, 2001
Revised Manuscript: June 29, 2001
Published: February 1, 2002

Citation
Giancarlo Pedrini, Hans J. Tiziani, and Igor Alexeenko, "Digital-holographic interferometry with an image-intensifier system," Appl. Opt. 41, 648-653 (2002)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-41-4-648

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