Single shot phase shifting techniques for 4D radial slope measurements of transparent samples

Single shot phase shifting techniques for 4D radial slope measurements of transparent samples

Through the use of non-destructive optical techniques to measure surfaces with high accuracy, a Mach-Zehnder Radial-Shear interferometer (MZRI) was implemented to analyze the radial slope of phase objects using simultaneous phase-shifting interferometry (SPSI). This optical configuration allows one to simultaneously obtain n-shearograms in order to retrieve the optical phase data map with higher accuracy. Phase reconstruction is performed using a well-known four step phase shifting algorithm. The experimental results for transparent samples are presented in this paper.

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Bibliographic Details
Main Authors: Toto-Arellano,N.I., Serrano-García,D.I., Martínez García,A., Rodríguez-Zurita,G., Montes-Pérez,A., Miranda-Gómez,J.M., Reséndiz López,G., González Rosas,A., García-Lechuga,L.
Format: Digital revista
Language:English
Published: Sociedad Mexicana de Física 2012
Online Access:http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S0035-001X2012000400009
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Summary:Through the use of non-destructive optical techniques to measure surfaces with high accuracy, a Mach-Zehnder Radial-Shear interferometer (MZRI) was implemented to analyze the radial slope of phase objects using simultaneous phase-shifting interferometry (SPSI). This optical configuration allows one to simultaneously obtain n-shearograms in order to retrieve the optical phase data map with higher accuracy. Phase reconstruction is performed using a well-known four step phase shifting algorithm. The experimental results for transparent samples are presented in this paper.

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