Interferometric angular characterization of ion-exchanged glass binary phase plates

An interferometric characterization of the phase angular shifting produced by rotation of an ion-exchanged glass binary phase plates is presented. The inverse WKB method is used as a starting point to fabricate the phase plates, because such a method can only characterize the phase shift for normal...

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Bibliographic Details
Published in:Journal of physics. Conference series 2015-04, Vol.605 (1), p.12027
Main Authors: Moreno, Vicente, Prieto-Blanco, Xesús, Montero, Carlos, Crespo, José, Barral, David, Mouriz, Dolores, Nistal, María C, Mateo, Eduardo F, Liñares, Jesús
Format: Article
Language:English
Subjects:
Carre algorithms
Data processing
Interferometry
Ion exchange
Mach-Zehnder interferometers
Phase plates
Physics
Wave fronts
Wave propagation
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Summary:An interferometric characterization of the phase angular shifting produced by rotation of an ion-exchanged glass binary phase plates is presented. The inverse WKB method is used as a starting point to fabricate the phase plates, because such a method can only characterize the phase shift for normal incidence of the light on the plate. A complete phase angular shifting characterization is made by a Mach-Zehnder interferometer where a four-step phase shifting method is used for acquisition of data and a modified Carre algorithm is applied to data processing. The theoretical phase shifting is calculated by using the phase accumulated by a plane wavefront propagating in an axial graded-index media modelling an ion-exchanged glass phase plate. Experimental results present a good agreement with theoretical predictions.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/605/1/012027