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1 September 2015 Single shot diattenuation imaging by circular polarization orthogonality breaking
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Abstract
A novel technique is proposed to unambiguously determine the magnitude and orientation of linear dichroism. It relies on the use of a dual-frequency dual-polarization coherent source emitting two orthogonal circularly polarized modes at the output. The interaction of such beam with dichroic media is shown to give rise to a beatnote signal in the radiofrequency range. The amplitude and phase of such beatnote makes it possible to fully determine the magnitude and orientation angle of the diattenuation. We also report the application of this method to polarimetric imaging, with promising perspectives in biomedical imaging. Indeed, it provides a direct characterization of dichroic sample orientation, showing uniform estimated dichroism magnitude, whatever the orientation of the sample.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Noé Ortega-Quijano, Julien Fade, Emmanuel Schaub, François Parnet, and Mehdi Alouini "Single shot diattenuation imaging by circular polarization orthogonality breaking", Proc. SPIE 9613, Polarization Science and Remote Sensing VII, 961303 (1 September 2015); https://doi.org/10.1117/12.2188569
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