4D profile of phase objects through the use of a simultaneous phase shifting quasi-common path interferometer
Toto-Arellano, Noel-Ivan; Serrano-García, David Ignacio; García, Amalia Martínez; Zurita, Gustavo Rodríguez; Montes-Pérez, Areli; Toto-Arellano, Noel-Ivan; Laboratorio de Óptica Física, Facultad de Ciencias Físico-Matemáticas de la Benemérita, Universidad Autónoma de Puebla, Pue, Mexico; Serrano-García, David Ignacio; Centro de Investigaciones en Óptica AC, Loma del Bosque #115, Col. Lomas del Campestre, CP 37150, León, Gto, Mexico; García, Amalia Martínez; Centro de Investigaciones en Óptica AC, Loma del Bosque #115, Col. Lomas del Campestre, CP 37150, León, Gto, Mexico; Zurita, Gustavo Rodríguez; Laboratorio de Óptica Física, Facultad de Ciencias Físico-Matemáticas de la Benemérita, Universidad Autónoma de Puebla, Pue, Mexico; Montes-Pérez, Areli; Laboratorio de Óptica Física, Facultad de Ciencias Físico-Matemáticas de la Benemérita, Universidad Autónoma de Puebla, Pue, Mexico
Журнал:
Journal of Optics
Дата:
2011-11-01
Аннотация:
Modulation of polarization is commonly employed in optical interferometry through the use of polarizers and quarter-wave retarders. Phase shifts between interfering beams can be easily controlled with such techniques. This communication describes some details of modulation of polarization which are useful in phase shifting interferometry applied to the study of phase objects. As an application, the case of a two-beam phase grating interferometer is discussed on the grounds of polarization analysis as an example. The configuration presented does not require micro-polarizer arrays or additional software to eliminate noise caused by vibration. This system does not use a double window, and generates two beams, the separation of which can be varied according to the characteristics of the grid used. Experimental results are also given.
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