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Article: Dispersionless phase discontinuities for controlling light propagation

TitleDispersionless phase discontinuities for controlling light propagation
Authors
KeywordsMetamaterials
plasmonics
vortex beam
phase discontinuities
refraction
Issue Date2012
Citation
Nano Letters, 2012, v. 12, n. 11, p. 5750-5755 How to Cite?
AbstractUltrathin metasurfaces consisting of a monolayer of subwavelength plasmonic resonators are capable of generating local abrupt phase changes and can be used for controlling the wavefront of electromagnetic waves. The phase change occurs for transmitted or reflected wave components whose polarization is orthogonal to that of a linearly polarized (LP) incident wave. As the phase shift relies on the resonant features of the plasmonic structures, it is in general wavelength-dependent. Here, we investigate the interaction of circularly polarized (CP) light at an interface composed of a dipole antenna array to create spatially varying abrupt phase discontinuities. The phase discontinuity is dispersionless, that is, it solely depends on the orientation of dipole antennas, but not their spectral response and the wavelength of incident light. By arranging the antennas in an array with a constant phase gradient along the interface, the phenomenon of broadband anomalous refraction is observed ranging from visible to near-infrared wavelengths. We further design and experimentally demonstrate an ultrathin phase gradient interface to generate a broadband optical vortex beam based on the above principle. © 2012 American Chemical Society.
Persistent Identifierhttp://hdl.handle.net/10722/295009
ISSN
2020 Impact Factor: 11.189
2020 SCImago Journal Rankings: 4.853
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorHuang, Lingling-
dc.contributor.authorChen, Xianzhong-
dc.contributor.authorMühlenbernd, Holger-
dc.contributor.authorLi, Guixin-
dc.contributor.authorBai, Benfeng-
dc.contributor.authorTan, Qiaofeng-
dc.contributor.authorJin, Guofan-
dc.contributor.authorZentgraf, Thomas-
dc.contributor.authorZhang, Shuang-
dc.date.accessioned2021-01-05T04:58:52Z-
dc.date.available2021-01-05T04:58:52Z-
dc.date.issued2012-
dc.identifier.citationNano Letters, 2012, v. 12, n. 11, p. 5750-5755-
dc.identifier.issn1530-6984-
dc.identifier.urihttp://hdl.handle.net/10722/295009-
dc.description.abstractUltrathin metasurfaces consisting of a monolayer of subwavelength plasmonic resonators are capable of generating local abrupt phase changes and can be used for controlling the wavefront of electromagnetic waves. The phase change occurs for transmitted or reflected wave components whose polarization is orthogonal to that of a linearly polarized (LP) incident wave. As the phase shift relies on the resonant features of the plasmonic structures, it is in general wavelength-dependent. Here, we investigate the interaction of circularly polarized (CP) light at an interface composed of a dipole antenna array to create spatially varying abrupt phase discontinuities. The phase discontinuity is dispersionless, that is, it solely depends on the orientation of dipole antennas, but not their spectral response and the wavelength of incident light. By arranging the antennas in an array with a constant phase gradient along the interface, the phenomenon of broadband anomalous refraction is observed ranging from visible to near-infrared wavelengths. We further design and experimentally demonstrate an ultrathin phase gradient interface to generate a broadband optical vortex beam based on the above principle. © 2012 American Chemical Society.-
dc.languageeng-
dc.relation.ispartofNano Letters-
dc.subjectMetamaterials-
dc.subjectplasmonics-
dc.subjectvortex beam-
dc.subjectphase discontinuities-
dc.subjectrefraction-
dc.titleDispersionless phase discontinuities for controlling light propagation-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/nl303031j-
dc.identifier.pmid23062196-
dc.identifier.scopuseid_2-s2.0-84869189137-
dc.identifier.volume12-
dc.identifier.issue11-
dc.identifier.spage5750-
dc.identifier.epage5755-
dc.identifier.eissn1530-6992-
dc.identifier.isiWOS:000311244400052-
dc.identifier.issnl1530-6984-

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