Super-collimation by axisymmetric photonic crystals

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To access the full text documents, please follow this link: http://hdl.handle.net/2117/26665

dc.contributor	Universitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear
dc.contributor	Universitat Politècnica de Catalunya. DONLL - Dinàmica no Lineal, Òptica no Lineal i Làsers
dc.contributor.author	Purlys, Vytautas
dc.contributor.author	Maigyte, Lina
dc.contributor.author	Gailevicius, Darius
dc.contributor.author	Peckus, Martynas
dc.contributor.author	Gadonas, Roaldas
dc.contributor.author	Staliunas, Kestutis
dc.date	2014-06-02
dc.identifier.citation	Purlys, V. [et al.]. Super-collimation by axisymmetric photonic crystals. "Applied physics letters", 02 Juny 2014, vol. 104, núm. 22.
dc.identifier.citation	0003-6951
dc.identifier.citation	10.1063/1.4881839
dc.identifier.uri	http://hdl.handle.net/2117/26665
dc.language.iso	eng
dc.relation	http://scitation.aip.org/content/aip/journal/apl/104/22/10.1063/1.4881839?showFTTab=true&containerItemId=content/aip/journal/apl
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	Àrees temàtiques de la UPC::Ciències de la visió::Òptica física::Llum
dc.subject	Àrees temàtiques de la UPC::Física
dc.subject	Photonics
dc.subject	Negative refraction
dc.subject	Lens
dc.subject	Fotònica
dc.subject	Llum
dc.title	Super-collimation by axisymmetric photonic crystals
dc.type	info:eu-repo/semantics/publishedVersion
dc.type	info:eu-repo/semantics/article
dc.description.abstract	We propose and experimentally show the mechanism of beam super-collimation by axisymmetric photonic crystals, specifically by periodic (in propagation direction) structure of layers of concentric rings. The physical mechanism behind the effect is an inverse scattering cascade of diffracted wave components back into on-and near-axis angular field components, resulting in substantial enhancement of intensity of these components. We explore the super-collimation by numerical calculations and prove it experimentally. We demonstrate experimentally the axial field enhancement up to 7 times in terms of field intensity.
dc.description.abstract	Peer Reviewed

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