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Electronic speckle pattern interferometry using vortex beams.

Authors
  • Restrepo, René
  • Uribe-Patarroyo, Néstor
  • Belenguer, Tomás
Type
Published Article
Journal
Optics Letters
Publisher
The Optical Society
Publication Date
Dec 01, 2011
Volume
36
Issue
23
Pages
4644–4646
Identifiers
DOI: 10.1364/OL.36.004644
PMID: 22139270
Source
Medline
License
Unknown

Abstract

We show that it is possible to perform electronic speckle pattern interferometry (ESPI) using, for the first time to our knowledge, vortex beams as the reference beam. The technique we propose is easy to implement, and the advantages obtained are, among others, environmental stability, lower processing time, and the possibility to switch between traditional ESPI and spiral ESPI. The experimental results clearly show the advantages of using the proposed technique for deformation studies of complex structures.

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