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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 2 — Jan. 15, 2014
  • pp: 291–294

Circular–linear grating Talbot interferometry with moiré Fresnel imaging for beam collimation

Krzysztof Patorski, Krzysztof Pokorski, and Maciej Trusiak  »View Author Affiliations


Optics Letters, Vol. 39, Issue 2, pp. 291-294 (2014)
http://dx.doi.org/10.1364/OL.39.000291


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Abstract

The Talbot interferometer using different self-imaging structures is studied and applied for laser beam collimation. A circular–linear grating pair enables visual dynamic detection and computer moirégram analysis. Automatic single-frame processing is performed using a 2D continuous wavelet transform. Conducting moirégram imaging in the Fresnel field of a double-diffraction system is brought up to avoid using distortion-free objectives and simplify the experimental setup. Simulation and experimental results document the method properties and provide beautiful exemplification of the double-grating Fresnel diffraction theory developed earlier.

© 2014 Optical Society of America

OCIS Codes
(070.6760) Fourier optics and signal processing : Talbot and self-imaging effects
(120.1680) Instrumentation, measurement, and metrology : Collimation
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.4120) Instrumentation, measurement, and metrology : Moire' techniques

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: October 29, 2013
Revised Manuscript: November 19, 2013
Manuscript Accepted: December 3, 2013
Published: January 8, 2014

Citation
Krzysztof Patorski, Krzysztof Pokorski, and Maciej Trusiak, "Circular–linear grating Talbot interferometry with moiré Fresnel imaging for beam collimation," Opt. Lett. 39, 291-294 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-2-291

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