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dc.contributor.authorSlussarenko, Sergei
dc.contributor.authorAlberucci, Alessandro
dc.contributor.authorJisha, Chandroth P
dc.contributor.authorPiccirillo, Bruno
dc.contributor.authorSantamato, Enrico
dc.contributor.authorAssanto, Gaetano
dc.contributor.authorMarrucci, Lorenzo
dc.date.accessioned2019-03-01T03:40:44Z
dc.date.available2019-03-01T03:40:44Z
dc.date.issued2016
dc.identifier.issn1749-4885
dc.identifier.doi10.1038/NPHOTON.2016.138
dc.identifier.urihttp://hdl.handle.net/10072/100440
dc.description.abstractKnown methods for transverse confinement and guidance of light can be grouped into a few basic mechanisms, the most common being metallic reflection, total internal reflection and photonic-bandgap (or Bragg) reflection1–5. All of them essentially rely on changes of the refractive index, that is on scalar properties of light. Recently, processes based on “geometric Berry phases”, such as manipulation of polarization states or deflection of spinning-light rays6–9, have attracted considerable interest in the contexts of singular optics and structured light10,11. Here, we disclose a new approach to light waveguiding, using geometric Berry phases and exploiting polarization states and their handling. This can be realized in structured three-dimensional anisotropic media, in which the optic axis lies orthogonal to the propagation direction and is modulated along it and across the transverse plane, so that the refractive index remains constant but a phase distortion can be imposed on a beam. In addition to a complete theoretical analysis with numerical simulations, we present a proof-of-principle experimental demonstration of this effect in a discrete element implementation of a geometric phase waveguide. The mechanism we introduce shows that spin-orbit optical interactions can play an important role in integrated optics and paves the way to an entire new class of photonic systems that exploit the vectorial nature of light.
dc.description.peerreviewedYes
dc.languageEnglish
dc.publisherNature Publishing Group
dc.relation.ispartofpagefrom571
dc.relation.ispartofpageto577
dc.relation.ispartofjournalNature Photonics
dc.relation.ispartofvolume10
dc.subject.fieldofresearchPhysical Sciences not elsewhere classified
dc.subject.fieldofresearchMathematical Sciences
dc.subject.fieldofresearchPhysical Sciences
dc.subject.fieldofresearchcode029999
dc.subject.fieldofresearchcode01
dc.subject.fieldofresearchcode02
dc.titleGuiding light via geometric phases
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
dc.description.versionPost-print
gro.facultyGriffith Sciences, School of Natural Sciences
gro.rights.copyright© 2016 Nature Publishing Group. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal website for access to the definitive, published version.
gro.hasfulltextFull Text
gro.griffith.authorSlussarenko, Sergei


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