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Optica Publishing Group
  • 2015 European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference
  • (Optica Publishing Group, 2015),
  • paper CL_3_2

Single shot polarimetric contrast microscopy by circular polarization orthogonality breaking imaging

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Abstract

Polarimetry is a widely used technique to enhance contrast and perform beam and/or sample characterization in many different fields like atmospheric remote sensing, target detection, astronomy, and biomedical diagnostics [1]. Polarimetric sensing by orthogonality breaking is a recently proposed measurement principle which enables to perform a direct characterization of the sample dichroism and/or depolarization in a single measurement, with a high dynamic range and acquisition speed [2]. Its essential aspects are the use of a specific dual-frequency dual-polarization coherent source and the fact that the polarimetric information is carried by a radio-frequency (RF) intensity beatnote induced by the sample dichroism/depolarization. Indeed, the fact that biological tissues show both birefringence and dichroism sharing the same optical axis [3,4] enables to characterize its anisotropic structure by measuring its linear diattenuation. In that perspective, we have recently reported the development of a polarimetric contrast microscope based on this technique [5].

© 2015 IEEE

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