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Article: Nonlinear Metasurface for Simultaneous Control of Spin and Orbital Angular Momentum in Second Harmonic Generation

TitleNonlinear Metasurface for Simultaneous Control of Spin and Orbital Angular Momentum in Second Harmonic Generation
Authors
KeywordsMetasurface
Optical vortex
Orbital angular momentum
Plasmonics
Second harmonic generation
Issue Date2017
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/nanolett
Citation
Nano Letters, 2017, v. 17 n. 12, p. 7974-7979 How to Cite?
AbstractThe spin and orbital angular momentum (SAM and OAM) of light is providing a new gateway toward high capacity and robust optical communications. While the generation of light with angular momentum is well studied in linear optics, its further integration into nonlinear optical devices will open new avenues for increasing the capacity of optical communications through additional information channels at new frequencies. However, it has been challenging to manipulate the both SAM and OAM of nonlinear signals in harmonic generation processes with conventional nonlinear materials. Here, we report the generation of spin-controlled OAM of light in harmonic generations by using ultrathin photonic metasurfaces. The spin manipulation of OAM mode of harmonic waves is experimentally verified by using second harmonic generation (SHG) from gold meta-atom with 3-fold rotational symmetry. By introducing nonlinear phase singularity into the metasurface devices, we successfully generate and measure the topological charges of spin-controlled OAM mode of SHG through an on-chip metasurface interferometer. The nonlinear photonic metasurface proposed in this work not only opens new avenues for manipulating the OAM of nonlinear optical signals but also benefits the understanding of the nonlinear spin-orbit interaction of light in nanoscale devices.
Persistent Identifierhttp://hdl.handle.net/10722/261132
ISSN
2017 Impact Factor: 12.08
2015 SCImago Journal Rankings: 9.006
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLi, G-
dc.contributor.authorWu, L-
dc.contributor.authorLi, KF-
dc.contributor.authorChen, S-
dc.contributor.authorSchlickriede, C-
dc.contributor.authorXu, Z-
dc.contributor.authorHuang, S-
dc.contributor.authorLi, W-
dc.contributor.authorLiu, Y-
dc.contributor.authorPun, EY-
dc.contributor.authorZentgraf, T-
dc.contributor.authorCheah, KW-
dc.contributor.authorLuo, Y-
dc.contributor.authorZhang, S-
dc.date.accessioned2018-09-14T08:53:01Z-
dc.date.available2018-09-14T08:53:01Z-
dc.date.issued2017-
dc.identifier.citationNano Letters, 2017, v. 17 n. 12, p. 7974-7979-
dc.identifier.issn1530-6984-
dc.identifier.urihttp://hdl.handle.net/10722/261132-
dc.description.abstractThe spin and orbital angular momentum (SAM and OAM) of light is providing a new gateway toward high capacity and robust optical communications. While the generation of light with angular momentum is well studied in linear optics, its further integration into nonlinear optical devices will open new avenues for increasing the capacity of optical communications through additional information channels at new frequencies. However, it has been challenging to manipulate the both SAM and OAM of nonlinear signals in harmonic generation processes with conventional nonlinear materials. Here, we report the generation of spin-controlled OAM of light in harmonic generations by using ultrathin photonic metasurfaces. The spin manipulation of OAM mode of harmonic waves is experimentally verified by using second harmonic generation (SHG) from gold meta-atom with 3-fold rotational symmetry. By introducing nonlinear phase singularity into the metasurface devices, we successfully generate and measure the topological charges of spin-controlled OAM mode of SHG through an on-chip metasurface interferometer. The nonlinear photonic metasurface proposed in this work not only opens new avenues for manipulating the OAM of nonlinear optical signals but also benefits the understanding of the nonlinear spin-orbit interaction of light in nanoscale devices.-
dc.languageeng-
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/nanolett-
dc.relation.ispartofNano Letters-
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in [JournalTitle], copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see [insert ACS Articles on Request author-directed link to Published Work, see http://pubs.acs.org/page/policy/articlesonrequest/index.html].-
dc.subjectMetasurface-
dc.subjectOptical vortex-
dc.subjectOrbital angular momentum-
dc.subjectPlasmonics-
dc.subjectSecond harmonic generation-
dc.titleNonlinear Metasurface for Simultaneous Control of Spin and Orbital Angular Momentum in Second Harmonic Generation-
dc.typeArticle-
dc.identifier.emailLi, W: liwd@hku.hk-
dc.identifier.authorityLi, W=rp01581-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/acs.nanolett.7b04451-
dc.identifier.pmid29144753-
dc.identifier.scopuseid_2-s2.0-85038206980-
dc.identifier.hkuros291173-
dc.identifier.volume17-
dc.identifier.issue12-
dc.identifier.spage7974-
dc.identifier.epage7979-
dc.identifier.isiWOS:000418393300112-
dc.publisher.placeUnited States-

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