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Besinc Pseudo-Schell Model Sources with Circular Coherence

1
Departamento de Óptica, Universidad Complutense de Madrid, Ciudad Universitaria, 28040 Madrid, Spain
2
ETSIS de Telecomunicación, Universidad Politécnica de Madrid, Campus Sur, 28031 Madrid, Spain
3
Dipartimento di Ingegneria, Università Roma Tre, Via V. Volterra 62, 00146 Rome, Italy
*
Author to whom correspondence should be addressed.
Appl. Sci. 2019, 9(13), 2716; https://doi.org/10.3390/app9132716
Received: 18 June 2019 / Revised: 29 June 2019 / Accepted: 1 July 2019 / Published: 4 July 2019
(This article belongs to the Special Issue Recent Advances in Statistical Optics and Plasmonics)
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Abstract

Partially coherent sources with non-conventional coherence properties present unusual behaviors during propagation, which have potential application in fields like optical trapping and microscopy. Recently, partially coherent sources exhibiting circular coherence have been introduced and experimentally realized. Among them, the so-called pseudo Schell-model sources present coherence properties that depend only on the difference between the radial coordinates of two points. Here, the intensity and coherence properties of the fields radiated from pseudo Schell-model sources with a degree of coherence of the besinc type are analyzed in detail. A sharpening of the intensity profile is found for the propagated beam by appropriately selecting the coherence parameters. As a possible application, the trapping of different types of dielectric nanoparticles with this kind of beam is described. View Full-Text
Keywords: partial coherence; statistical optics partial coherence; statistical optics
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Martínez-Herrero, R.; Piquero, G.; González de Sande, J.C.; Santarsiero, M.; Gori, F. Besinc Pseudo-Schell Model Sources with Circular Coherence. Appl. Sci. 2019, 9, 2716.

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