Visualizing the near-field coupling and interference of bonding and anti-bonding modes in infrared dimer nanoantennas

We directly visualize and identify the capacitive coupling of infrared dimer antennas in the near field by employing scattering-type scanning near-field optical microscopy (s-SNOM). The coupling is identified by (i) resolving the strongly enhanced nano-localized near fields in the antenna gap and by...

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Autores: Alonso-González, Pablo, Albella Echave, Pablo|||0000-0001-7531-7828, Golmar, Federico, Arzubiaga, Libe, Casanova, Félix, Hueso, Luis E., Aizpurua, Javier, Hillenbrand, Rainer
Formato: artículo
Fecha de publicación:2013
País:España
Recursos:Universidad de Cantabria (UC)
Repositorio:UCrea Repositorio Abierto de la Universidad de Cantabria
Idioma:inglés
OAI Identifier:oai:repositorio.unican.es:10902/30620
Acesso em linha:https://hdl.handle.net/10902/30620
Access Level:acceso abierto
Palavra-chave:Electron beam lithography
Nanoantennas
Near field scanning optical microscopy
Near infrared
Optical antennas
Optical fields
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spelling Visualizing the near-field coupling and interference of bonding and anti-bonding modes in infrared dimer nanoantennasAlonso-González, PabloAlbella Echave, Pablo|||0000-0001-7531-7828Golmar, FedericoArzubiaga, LibeCasanova, FélixHueso, Luis E.Aizpurua, JavierHillenbrand, RainerElectron beam lithographyNanoantennasNear field scanning optical microscopyNear infraredOptical antennasOptical fieldsWe directly visualize and identify the capacitive coupling of infrared dimer antennas in the near field by employing scattering-type scanning near-field optical microscopy (s-SNOM). The coupling is identified by (i) resolving the strongly enhanced nano-localized near fields in the antenna gap and by (ii) tracing the red shift of the dimer resonance when compared to the resonance of the single antenna constituents. Furthermore, by modifying the illumination geometry we break the symmetry, providing a means to excite both the bonding and the “dark” anti-bonding modes. By spectrally matching both modes, their interference yields an enhancement or suppression of the near fields at specific locations, which could be useful in nanoscale coherent control applications.We acknowledge support from the European FP7 projects “Nanoantenna” (FP7-HEALTH-F5-2009-241818-NANOANTENNA), NMP (NMP3-SL-2011-263104- HINTS), and “SPINTROS” (257654), and the National Projects MAT2009-08398, MAT2009-08494 and FIS2010-19609-C02-C01 from the Spanish Ministerio de Ciencia e Innovacion. We also acknowledge the Marie Curie Actions PIRG06-GA-2009-25647, ITAMOSCINOM, as well as the Basque Government Program PI2011-1 and Etortek-2011 (nanoiker).Optica Publishing GroupUniversidad de Cantabria20132013-01-01journal articlehttp://purl.org/coar/resource_type/c_6501NAhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43info:eu-repo/semantics/articlehttps://hdl.handle.net/10902/30620Optics Express, 2013, 21(1), 1270-1280reponame:UCrea Repositorio Abierto de la Universidad de Cantabriainstname:Universidad de Cantabria (UC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:repositorio.unican.es:10902/306202026-06-02T12:39:31Z
dc.title.none.fl_str_mv Visualizing the near-field coupling and interference of bonding and anti-bonding modes in infrared dimer nanoantennas
title Visualizing the near-field coupling and interference of bonding and anti-bonding modes in infrared dimer nanoantennas
spellingShingle Visualizing the near-field coupling and interference of bonding and anti-bonding modes in infrared dimer nanoantennas
Alonso-González, Pablo
Electron beam lithography
Nanoantennas
Near field scanning optical microscopy
Near infrared
Optical antennas
Optical fields
title_short Visualizing the near-field coupling and interference of bonding and anti-bonding modes in infrared dimer nanoantennas
title_full Visualizing the near-field coupling and interference of bonding and anti-bonding modes in infrared dimer nanoantennas
title_fullStr Visualizing the near-field coupling and interference of bonding and anti-bonding modes in infrared dimer nanoantennas
title_full_unstemmed Visualizing the near-field coupling and interference of bonding and anti-bonding modes in infrared dimer nanoantennas
title_sort Visualizing the near-field coupling and interference of bonding and anti-bonding modes in infrared dimer nanoantennas
dc.creator.none.fl_str_mv Alonso-González, Pablo
Albella Echave, Pablo|||0000-0001-7531-7828
Golmar, Federico
Arzubiaga, Libe
Casanova, Félix
Hueso, Luis E.
Aizpurua, Javier
Hillenbrand, Rainer
author Alonso-González, Pablo
author_facet Alonso-González, Pablo
Albella Echave, Pablo|||0000-0001-7531-7828
Golmar, Federico
Arzubiaga, Libe
Casanova, Félix
Hueso, Luis E.
Aizpurua, Javier
Hillenbrand, Rainer
author_role author
author2 Albella Echave, Pablo|||0000-0001-7531-7828
Golmar, Federico
Arzubiaga, Libe
Casanova, Félix
Hueso, Luis E.
Aizpurua, Javier
Hillenbrand, Rainer
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidad de Cantabria
dc.subject.none.fl_str_mv Electron beam lithography
Nanoantennas
Near field scanning optical microscopy
Near infrared
Optical antennas
Optical fields
topic Electron beam lithography
Nanoantennas
Near field scanning optical microscopy
Near infrared
Optical antennas
Optical fields
description We directly visualize and identify the capacitive coupling of infrared dimer antennas in the near field by employing scattering-type scanning near-field optical microscopy (s-SNOM). The coupling is identified by (i) resolving the strongly enhanced nano-localized near fields in the antenna gap and by (ii) tracing the red shift of the dimer resonance when compared to the resonance of the single antenna constituents. Furthermore, by modifying the illumination geometry we break the symmetry, providing a means to excite both the bonding and the “dark” anti-bonding modes. By spectrally matching both modes, their interference yields an enhancement or suppression of the near fields at specific locations, which could be useful in nanoscale coherent control applications.
publishDate 2013
dc.date.none.fl_str_mv 2013
2013-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
NA
http://purl.org/coar/version/c_be7fb7dd8ff6fe43
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/10902/30620
url https://hdl.handle.net/10902/30620
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
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
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Optica Publishing Group
publisher.none.fl_str_mv Optica Publishing Group
dc.source.none.fl_str_mv Optics Express, 2013, 21(1), 1270-1280
reponame:UCrea Repositorio Abierto de la Universidad de Cantabria
instname:Universidad de Cantabria (UC)
instname_str Universidad de Cantabria (UC)
reponame_str UCrea Repositorio Abierto de la Universidad de Cantabria
collection UCrea Repositorio Abierto de la Universidad de Cantabria
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,198674

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