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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 14 — Jul. 9, 2007
  • pp: 8787–8796

A novel operating principle in speckle interferometry: the double-focusing

Luigi Bruno and Andrea Poggialini  »View Author Affiliations

Optics Express, Vol. 15, Issue 14, pp. 8787-8796 (2007)

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The present paper describes in details the operating principle of a completely new family of speckle interferometers: the double-focusing. This type of interferometer is sensitive to the same components of displacement given by holographic interferometry, i.e. the component along the bisector of the angle identified by the illumination and the observation directions. In addition, no external reference beam is necessary, with a consequent reduction of the complexity of the experimental setup. The only requirement for the correct functioning of this family of interferometers is that only a portion of the illuminated area undergoes a sensible deformation. The implementation can be indifferently carried out by adopting the classical Michelson or Mach-Zender configurations, but also a particularly compact in-line implementation can be realized.

© 2007 Optical Society of America

OCIS Codes
(080.2740) Geometric optics : Geometric optical design
(120.6160) Instrumentation, measurement, and metrology : Speckle interferometry

ToC Category:
Instrumentation, Measurement, and Metrology

Original Manuscript: May 15, 2007
Revised Manuscript: June 20, 2007
Manuscript Accepted: June 25, 2007
Published: June 28, 2007

Luigi Bruno and Andrea Poggialini, "A novel operating principle in speckle interferometry: the double-focusing," Opt. Express 15, 8787-8796 (2007)

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