Whole-field polarization analysis by digital holography with single reference beam

Masayuki Yokota; Yoshitaka Terui; Ichirou Yamaguchi

doi:10.1117/12.681953

14 August 2006 Whole-field polarization analysis by digital holography with single reference beam

Masayuki Yokota, Yoshitaka Terui, Ichirou Yamaguchi

Proceedings Volume 6293, Interferometry XIII: Applications; 62930M (2006) https://doi.org/10.1117/12.681953
Event: SPIE Optics + Photonics, 2006, San Diego, California, United States

Abstract

Digital holographic technique has been applied to analyze the spatial distribution of polarization state of light transmitted through anisotropic objects by successive hologram recording using polarization switching of the reference wave by an optical fiber Faraday rotator. For a test object, a quarter wave plate (QWP) is used and the distribution of polarization ellipse over its field is analyzed for various azimuth of the QWP. By inserting a polarizer into a part of the object wave as a reference area, a phase drift of the reference waves caused by polarization switching and environmental disturbances can be estimated and compensated for by using the phase of the known polarization area. The principal axis and ellipticity are calculated and compared with their theoretical values. A good agreement between the experimental and theoretical values is observed. For an application, a photoelastic effect induced in a compressed PMMA specimen is also investigated.

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Masayuki Yokota, Yoshitaka Terui, and Ichirou Yamaguchi "Whole-field polarization analysis by digital holography with single reference beam", Proc. SPIE 6293, Interferometry XIII: Applications, 62930M (14 August 2006); https://doi.org/10.1117/12.681953

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KEYWORDS

Polarization

Digital holography

Holograms

3D image reconstruction

Charge-coupled devices

Polarizers

Switching

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