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Beam focusing in reflections from flat subwavelength diffraction gratings
dc.contributor.author | Cheng, Yu Chieh |
dc.contributor.author | Redondo, Javier |
dc.contributor.author | Staliunas, Kestutis |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear |
dc.date.accessioned | 2015-03-23T12:02:55Z |
dc.date.available | 2015-03-23T12:02:55Z |
dc.date.created | 2014-03-10 |
dc.date.issued | 2014-03-10 |
dc.identifier.citation | Cheng, Y.; Redondo, J.; Staliunas, K. Beam focusing in reflections from flat subwavelength diffraction gratings. "Physical review A", 10 Març 2014, vol. 89, núm. 3, p. 033814-1-033814-5. |
dc.identifier.issn | 1050-2947 |
dc.identifier.uri | http://hdl.handle.net/2117/26933 |
dc.description.abstract | We predict that narrow beams, reflecting from flat subwavelength diffraction gratings, can focus. The effect is shown for the beams of electromagnetic radiation; however, it should be observable for beams of waves of arbitrary nature (microwaves, surface plasmons, and acoustic and mechanical waves). We present analytical estimations of the focusing performance obtained by multiple scattering calculations and demonstrate the focusing effect numerically for an optical system (reflections from an array of dielectric cylinders), using the finite-difference time-domain calculations. |
dc.language.iso | eng |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Spain |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
dc.subject | Àrees temàtiques de la UPC::Física |
dc.subject.lcsh | Scattering (Physics) |
dc.subject.other | Analytical estimations |
dc.subject.other | Dielectric cylinder |
dc.subject.other | Finite-difference time-domain calculations |
dc.subject.other | Focusing effect |
dc.subject.other | Focusing performance |
dc.subject.other | Multiple scattering calculations |
dc.subject.other | Sub-wavelength |
dc.subject.other | Surface plasmons |
dc.title | Beam focusing in reflections from flat subwavelength diffraction gratings |
dc.type | Article |
dc.subject.lemac | Dispersió (Física) |
dc.contributor.group | Universitat Politècnica de Catalunya. DONLL - Dinàmica no Lineal, Òptica no Lineal i Làsers |
dc.identifier.doi | 10.1103/PhysRevA.89.033814 |
dc.description.peerreviewed | Peer Reviewed |
dc.rights.access | Open Access |
local.identifier.drac | 14263063 |
dc.description.version | Postprint (published version) |
local.citation.author | Cheng, Y.; Redondo, J.; Staliunas, K. |
local.citation.publicationName | Physical review A |
local.citation.volume | 89 |
local.citation.number | 3 |
local.citation.startingPage | 033814-1 |
local.citation.endingPage | 033814-5 |
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