Generalized Yamaguchi correlation factor for coherent quadratic phase speckle metrology systems with an aperture


Kelly, Damien P. and Ward, Jennifer E. and Gopinathan, Unnikrishnan and Hennelly, Bryan M. and O'Neill, Feidhlim T. and Sheridan, John T. (2006) Generalized Yamaguchi correlation factor for coherent quadratic phase speckle metrology systems with an aperture. Optics Letters, 31 (23). pp. 3444-3446. ISSN 0146-9592

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Abstract

In speckle-based metrology systems, a finite range of possible motion or deformation can be measured. When coherent imaging systems with a single limiting aperture are used in speckle metrology, the observed de correlation effects that ultimately define this range are described by the well-known Yamaguchi correlation factor. We extend this result to all coherent quadratic phase paraxial optical systems with a single aperture and provide experimental results to support our theoretical conclusions.

Item Type: Article
Keywords: Generalized Yamaguchi correlation factor; coherent quadratic phase; speckle metrology systems; aperture;
Academic Unit: Faculty of Science and Engineering > Computer Science
Faculty of Science and Engineering > Electronic Engineering
Faculty of Science and Engineering > Research Institutes > Hamilton Institute
Item ID: 8718
Identification Number: 10.1364/OL.31.003444
Depositing User: Dr. Bryan Hennelly
Date Deposited: 04 Sep 2017 11:25
Journal or Publication Title: Optics Letters
Publisher: Optical Society of America
Refereed: Yes
Funders: Enterprise Ireland, Science Foundation Ireland, Irish Research Council for Science Engineering and Technology (IRCSET)
URI:

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