Títol:
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Characterization of dielectric spheres by spiral imaging
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Autor/a:
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Petrov, Dimitri; Rahuel, Nicolás; Molina Terriza, Gabriel; Torner Sabata, Lluís
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Altres autors:
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Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. FOTONICA - Grup de Recerca de Fotònica |
Abstract:
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This paper was published in Optics Letters and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://dx.doi.org/10.1364/OL.37.000869. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law. |
Abstract:
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We study the spiral spectra scattered off transparent dielectric spheres when probed by different Laguerre–Gaussian
light beams, carrying nested topological wavefront dislocations. We show that such scattering data may be employed
to determine geometrical properties of the spheres, such as their position. The technique is a generalization
of standard Mie scattering, and it can be extended to study and to characterize nanospheres. |
Matèries:
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-Àrees temàtiques de la UPC::Física::Física de partícules::Fotons -Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica::Fotònica -Photonics -Fotònica |
Drets:
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Tipus de document:
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Article - Versió publicada Article |
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