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Cross-section mismatch: metamaterials to the rescue

2022-12Journal article Open access
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dc.contributor.authorLourenço, Paulo
dc.contributor.authorFantoni, Alessandro
dc.contributor.authorCosta, João
dc.contributor.authorVieira, Manuela
dc.date.accessioned2023-03-01T15:24:27Z
dc.date.available2023-03-01T15:24:27Z
dc.date.issued2022-12
dc.description.abstractCoupling light into and/or out of a photonic integrated circuit is often accomplished by establishing a vertical link between a single-mode optical fiber and a resonant waveguide grating, which is then followed by a tapered and a single-mode waveguides. The tapered waveguide operates as a spot-size converter, laterally expanding or contracting the light beam between the single-mode waveguide and the resonant waveguide grating. In this work, we propose using subwavelength structures to achieve tapering functionalities. To this end, we designed a metamaterial structure that enables the modulation of the refractive index necessary to either expand or focus a beam of light. Furthermore, we simulated the metamaterial structure through adequate numerical methods and the expanding, and focusing performances were analyzed in terms of efficiency and mode profile matching. We achieved over 43 % and 48 % for the integral overlap with the transverse magnetic fundamental mode for the focusing and expanding configurations, respectively, out of 49 % and 51 % of power transferred.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationLOURENÇO, Paulo ; FANTONI, Alessandro; COSTA, João; VIEIRA, Manuela - Cross-section mismatch: metamaterials to the rescue, Photonics and Nanostructures - Fundamentals and Applications, ISSN 1569-4410. Vol. 52 (2022), pp. 1-13.pt_PT
dc.identifier.doidoi.org/10.1016/j.photonics.2022.101086pt_PT
dc.identifier.issn1569-4410
dc.identifier.urihttp://hdl.handle.net/10400.21/15740
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationLisboa-02–0145-FEDER- 031311pt_PT
dc.relationPhotoAKI: Photonic Biosensor for point of care and Early Diagnostics of Acute Kidney Injury
dc.relationPhotonic biosensor for point of care and early diagnostics of acute kidney injury
dc.relationCentre of Technology and Systems
dc.relationIPL/2021/wavesensor_ISELpt_PT
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S1569441022000967pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectMetamaterialpt_PT
dc.subjectHexagonal latticept_PT
dc.subjectGraded index waveguidept_PT
dc.subjectSubwavelength structurespt_PT
dc.subjectExpanding/focusing lightpt_PT
dc.titleCross-section mismatch: metamaterials to the rescuept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitlePhotoAKI: Photonic Biosensor for point of care and Early Diagnostics of Acute Kidney Injury
oaire.awardTitlePhotonic biosensor for point of care and early diagnostics of acute kidney injury
oaire.awardTitleCentre of Technology and Systems
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F144833%2F2019/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/9471 - RIDTI/PTDC%2FNAN-OPT%2F31311%2F2017/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00066%2F2020/PT
oaire.citation.endPage7pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titlePhotonics and Nanostructures - Fundamentals and Applicationspt_PT
oaire.citation.volume52pt_PT
oaire.fundingStream9471 - RIDTI
oaire.fundingStream6817 - DCRRNI ID
person.familyNameLourenço
person.familyNameFantoni
person.familyNameCosta
person.familyNameVieira
person.givenNamePaulo
person.givenNameAlessandro
person.givenNameJoão
person.givenNameManuela
person.identifier10792
person.identifier.ciencia-id431F-5C2C-00FB
person.identifier.ciencia-id241E-E87C-552F
person.identifier.ciencia-id2314-A300-7C09
person.identifier.ciencia-id9516-E25E-BB8E
person.identifier.orcid0000-0002-8785-445X
person.identifier.orcid0000-0002-9938-0351
person.identifier.orcid0000-0002-8058-3685
person.identifier.orcid0000-0002-1150-9895
person.identifier.ridK-1105-2016
person.identifier.ridV-7860-2017
person.identifier.scopus-author-id7006535604
person.identifier.scopus-author-id35810047500
person.identifier.scopus-author-id7202140173
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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