Observation of slow light in glide-symmetric photonic-crystal waveguides

We report optical transmission measurements on suspended silicon photonic-crystal waveguides, where one side of the photonic lattice is shifted by half a period along the waveguide axis. The combination of this glide symmetry and slow light leads to a strongly enhanced chiral light-matter interactio...

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Autores: Patil, Chirag Murendranath, Arregui Bravo, Guillermo|||0000-0002-6458-5277, Mechlenborg, Morten, Zhou, Xiaoyan|||0000-0003-0833-0330, Alaeian, Hadiseh, García Fernández, Pedro David|||0000-0002-3422-178X, Stobbe, Søren|||0000-0002-0991-041X
Tipo de recurso: artículo
Fecha de publicación:2022
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:266344
Acceso en línea:https://ddd.uab.cat/record/266344
https://dx.doi.org/urn:doi:10.1364/OE.449221
Access Level:acceso abierto
Palabra clave:Dispersion relations
Evanescent coupling
Group index
Light-matter interactions
Optical transmission measurements
Photonic crystal resonators
Symmetric waveguides
Symmetrics
Transmission measurements
Waveguide axis
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spelling Observation of slow light in glide-symmetric photonic-crystal waveguidesPatil, Chirag MurendranathArregui Bravo, Guillermo|||0000-0002-6458-5277Mechlenborg, MortenZhou, Xiaoyan|||0000-0003-0833-0330Alaeian, HadisehGarcía Fernández, Pedro David|||0000-0002-3422-178XStobbe, Søren|||0000-0002-0991-041XDispersion relationsEvanescent couplingGroup indexLight-matter interactionsOptical transmission measurementsPhotonic crystal resonatorsSymmetric waveguidesSymmetricsTransmission measurementsWaveguide axisWe report optical transmission measurements on suspended silicon photonic-crystal waveguides, where one side of the photonic lattice is shifted by half a period along the waveguide axis. The combination of this glide symmetry and slow light leads to a strongly enhanced chiral light-matter interaction but the interplay between slow light and backscattering has not been investigated experimentally in such waveguides. We build photonic-crystal resonators consisting of glide-symmetric waveguides terminated by reflectors and use transmission measurements as well as evanescent coupling to map out the dispersion relation. We find excellent agreement with theory and measure group indices exceeding 90, implying significant potential for applications in slow-light devices and chiral quantum optics. By measuring resonators of different length, we assess the role of backscattering induced by fabrication imperfections and its intimate connection to the group index. 22022-01-0120222022-01-01Articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/266344https://dx.doi.org/urn:doi:10.1364/OE.449221reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengopen accesshttp://purl.org/coar/access_right/c_abf2Aquest material està protegit per drets d'autor i/o drets afins. Podeu utilitzar aquest material en funció del que permet la legislació de drets d'autor i drets afins d'aplicació al vostre cas. Per a d'altres usos heu d'obtenir permís del(s) titular(s) de drets.https://rightsstatements.org/vocab/InC/1.0/info:eu-repo/semantics/openAccessoai:ddd.uab.cat:2663442026-06-06T12:50:31Z
dc.title.none.fl_str_mv Observation of slow light in glide-symmetric photonic-crystal waveguides
title Observation of slow light in glide-symmetric photonic-crystal waveguides
spellingShingle Observation of slow light in glide-symmetric photonic-crystal waveguides
Patil, Chirag Murendranath
Dispersion relations
Evanescent coupling
Group index
Light-matter interactions
Optical transmission measurements
Photonic crystal resonators
Symmetric waveguides
Symmetrics
Transmission measurements
Waveguide axis
title_short Observation of slow light in glide-symmetric photonic-crystal waveguides
title_full Observation of slow light in glide-symmetric photonic-crystal waveguides
title_fullStr Observation of slow light in glide-symmetric photonic-crystal waveguides
title_full_unstemmed Observation of slow light in glide-symmetric photonic-crystal waveguides
title_sort Observation of slow light in glide-symmetric photonic-crystal waveguides
dc.creator.none.fl_str_mv Patil, Chirag Murendranath
Arregui Bravo, Guillermo|||0000-0002-6458-5277
Mechlenborg, Morten
Zhou, Xiaoyan|||0000-0003-0833-0330
Alaeian, Hadiseh
García Fernández, Pedro David|||0000-0002-3422-178X
Stobbe, Søren|||0000-0002-0991-041X
author Patil, Chirag Murendranath
author_facet Patil, Chirag Murendranath
Arregui Bravo, Guillermo|||0000-0002-6458-5277
Mechlenborg, Morten
Zhou, Xiaoyan|||0000-0003-0833-0330
Alaeian, Hadiseh
García Fernández, Pedro David|||0000-0002-3422-178X
Stobbe, Søren|||0000-0002-0991-041X
author_role author
author2 Arregui Bravo, Guillermo|||0000-0002-6458-5277
Mechlenborg, Morten
Zhou, Xiaoyan|||0000-0003-0833-0330
Alaeian, Hadiseh
García Fernández, Pedro David|||0000-0002-3422-178X
Stobbe, Søren|||0000-0002-0991-041X
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Dispersion relations
Evanescent coupling
Group index
Light-matter interactions
Optical transmission measurements
Photonic crystal resonators
Symmetric waveguides
Symmetrics
Transmission measurements
Waveguide axis
topic Dispersion relations
Evanescent coupling
Group index
Light-matter interactions
Optical transmission measurements
Photonic crystal resonators
Symmetric waveguides
Symmetrics
Transmission measurements
Waveguide axis
description We report optical transmission measurements on suspended silicon photonic-crystal waveguides, where one side of the photonic lattice is shifted by half a period along the waveguide axis. The combination of this glide symmetry and slow light leads to a strongly enhanced chiral light-matter interaction but the interplay between slow light and backscattering has not been investigated experimentally in such waveguides. We build photonic-crystal resonators consisting of glide-symmetric waveguides terminated by reflectors and use transmission measurements as well as evanescent coupling to map out the dispersion relation. We find excellent agreement with theory and measure group indices exceeding 90, implying significant potential for applications in slow-light devices and chiral quantum optics. By measuring resonators of different length, we assess the role of backscattering induced by fabrication imperfections and its intimate connection to the group index.
publishDate 2022
dc.date.none.fl_str_mv 2
2022-01-01
2022
2022-01-01
dc.type.none.fl_str_mv Article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://ddd.uab.cat/record/266344
https://dx.doi.org/urn:doi:10.1364/OE.449221
url https://ddd.uab.cat/record/266344
https://dx.doi.org/urn:doi:10.1364/OE.449221
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://rightsstatements.org/vocab/InC/1.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://rightsstatements.org/vocab/InC/1.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Dipòsit Digital de Documents de la UAB
instname:Universitat Autònoma de Barcelona
instname_str Universitat Autònoma de Barcelona
reponame_str Dipòsit Digital de Documents de la UAB
collection Dipòsit Digital de Documents de la UAB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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