Single shot diattenuation imaging by circular polarization orthogonality breaking
| Autor: | Noe Ortega-Quijano, Emmanuel Schaub, Julien Fade, François Parnet, Mehdi Alouini |
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| Přispěvatelé: | Institut de Physique de Rennes (IPR), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Centre National de la Recherche Scientifique (CNRS), Université de Rennes (UR)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2015 |
| Předmět: |
[PHYS]Physics [physics]
Physics business.industry Polarimetry Dichroism Polarization (waves) Dichroic glass Linear dichroism Biophotonics [SPI]Engineering Sciences [physics] Amplitude Optics [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic business ComputingMilieux_MISCELLANEOUS Circular polarization |
| Zdroj: | SPIE Optical Engineering + Applications, Polarization Science and Remote Sensing VII SPIE Optical Engineering + Applications, Polarization Science and Remote Sensing VII, Aug 2015, San Diego, United States. pp.961303, ⟨10.1117/12.2188569⟩ |
| ISSN: | 0277-786X |
| DOI: | 10.1117/12.2188569 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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