Scientific Results

Polarization phase-shift interferometry: a simple laboratory setup

Year: 2008

Authors: Vannoni M., Trivi M., Molesini G.

Autors Affiliation: CNR – Istituto Nazionale di Ottica Applicata, Largo E. Fermi 6, 50125 Firenze, Italy; Centro de Investigaciones Opticas, La Plata, Argentina

Abstract: An interferometry experiment is proposed, working on a Twyman-Green optical configuration. The interferogram is acquired with a digital camera and processed. Using polarization components the interferogram is phase-shifted and four different interferograms are acquired. The experiment is proposed as an introduction to modem phase-shift interferometry, using concepts and laboratory equipment at the level of undergraduate optics courses.

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More Information: Sponsor(s): The State of Sao Paulo Research Foundation (FAPESP); The State University of Campinas (UNICAMP); The Physics Institute Gleb Wataghin (IFGW); The Brazilian Society of Physics (SBF); The National Council Sci. Technol. Development (CNPq)
KeyWords: Demonstration experiments and apparatus; Education; Phase shifting interferometry
DOI: 10.1063/1.2926856

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