Nanostructured amorphous gallium phosphide on silica for nonlinear and ultrafast nanophotonics

Autores
Tilmann, Benjamin; Grinblat, Gustavo Sergio; Berté, Rodrigo; Özcan, Mehmet; Kunzelmann, Viktoria F.; Nickel, Bert; Sharp, Ian D.; Cortés, Emiliano; Maier, Stefan A.; Li, Yi
Año de publicación
2020
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Nanophotonics based on high refractive index dielectrics relies on appreciable contrast between the indices of designed nanostructures and their immediate surrounding, which can be achieved by the growth of thin films on low-index substrates. Here we propose the use of high index amorphous gallium phosphide (a-GaP), fabricated by radio-frequency sputter deposition, on top of a low refractive index glass substrate and thoroughly examine its nanophotonic properties. Spectral ellipsometry of the amorphous material demonstrates the optical properties to be considerably close to crystalline gallium phosphide (c-GaP), with low-loss transparency for wavelengths longer than 650 nm. When nanostructured into nanopatches, the second harmonic (SH) response of an individual a-GaP patch is characterized to be more than two orders of magnitude larger than the as-deposited unstructured film, with an anapole-like resonant behavior. Numerical simulations are in good agreement with the experimental results over a large spectral and geometrical range. Furthermore, by studying individual a-GaP nanopatches through non-degenerate pump-probe spectroscopy with sub-10 fs pulses, we find a more than 5% ultrafast modulation of the reflectivity that is accompanied by a slower decaying free carrier contribution, caused by absorption. Our investigations reveal a potential for a-GaP as an adequate inexpensive and CMOS-compatible material for nonlinear nanophotonic applications as well as for photocatalysis.
Fil: Tilmann, Benjamin. Ludwig Maximilians Universitat; Alemania
Fil: Grinblat, Gustavo Sergio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
Fil: Berté, Rodrigo. Ludwig Maximilians Universitat; Alemania
Fil: Özcan, Mehmet. Ludwig Maximilians Universitat; Alemania
Fil: Kunzelmann, Viktoria F.. Technische Universitat München; Alemania
Fil: Nickel, Bert. Ludwig Maximilians Universitat; Alemania
Fil: Sharp, Ian D.. Ludwig Maximilians Universitat; Alemania
Fil: Cortés, Emiliano. Ludwig Maximilians Universitat; Alemania
Fil: Maier, Stefan A.. Ludwig Maximilians Universitat; Alemania
Fil: Li, Yi. Southern University Of Science And Technology; China
Materia
Amorphous Gallium Phosphide
Second harmonic generation
Ultrafast optics
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/145816
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/145816
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Nanostructured amorphous gallium phosphide on silica for nonlinear and ultrafast nanophotonicsTilmann, BenjaminGrinblat, Gustavo SergioBerté, RodrigoÖzcan, MehmetKunzelmann, Viktoria F.Nickel, BertSharp, Ian D.Cortés, EmilianoMaier, Stefan A.Li, YiAmorphous Gallium PhosphideSecond harmonic generationUltrafast opticshttps://purl.org/becyt/ford/2.10https://purl.org/becyt/ford/2Nanophotonics based on high refractive index dielectrics relies on appreciable contrast between the indices of designed nanostructures and their immediate surrounding, which can be achieved by the growth of thin films on low-index substrates. Here we propose the use of high index amorphous gallium phosphide (a-GaP), fabricated by radio-frequency sputter deposition, on top of a low refractive index glass substrate and thoroughly examine its nanophotonic properties. Spectral ellipsometry of the amorphous material demonstrates the optical properties to be considerably close to crystalline gallium phosphide (c-GaP), with low-loss transparency for wavelengths longer than 650 nm. When nanostructured into nanopatches, the second harmonic (SH) response of an individual a-GaP patch is characterized to be more than two orders of magnitude larger than the as-deposited unstructured film, with an anapole-like resonant behavior. Numerical simulations are in good agreement with the experimental results over a large spectral and geometrical range. Furthermore, by studying individual a-GaP nanopatches through non-degenerate pump-probe spectroscopy with sub-10 fs pulses, we find a more than 5% ultrafast modulation of the reflectivity that is accompanied by a slower decaying free carrier contribution, caused by absorption. Our investigations reveal a potential for a-GaP as an adequate inexpensive and CMOS-compatible material for nonlinear nanophotonic applications as well as for photocatalysis.Fil: Tilmann, Benjamin. Ludwig Maximilians Universitat; AlemaniaFil: Grinblat, Gustavo Sergio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; ArgentinaFil: Berté, Rodrigo. Ludwig Maximilians Universitat; AlemaniaFil: Özcan, Mehmet. Ludwig Maximilians Universitat; AlemaniaFil: Kunzelmann, Viktoria F.. Technische Universitat München; AlemaniaFil: Nickel, Bert. Ludwig Maximilians Universitat; AlemaniaFil: Sharp, Ian D.. Ludwig Maximilians Universitat; AlemaniaFil: Cortés, Emiliano. Ludwig Maximilians Universitat; AlemaniaFil: Maier, Stefan A.. Ludwig Maximilians Universitat; AlemaniaFil: Li, Yi. Southern University Of Science And Technology; ChinaRoyal Society of Chemistry2020-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/145816Tilmann, Benjamin; Grinblat, Gustavo Sergio; Berté, Rodrigo; Özcan, Mehmet; Kunzelmann, Viktoria F.; et al.; Nanostructured amorphous gallium phosphide on silica for nonlinear and ultrafast nanophotonics; Royal Society of Chemistry; Nanoscale Horizons; 5; 11; 11-2020; 1500-15082055-6764CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://xlink.rsc.org/?DOI=D0NH00461Hinfo:eu-repo/semantics/altIdentifier/doi/10.1039/D0NH00461Hinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:46:07Zoai:ri.conicet.gov.ar:11336/145816instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:46:07.325CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Nanostructured amorphous gallium phosphide on silica for nonlinear and ultrafast nanophotonics
title Nanostructured amorphous gallium phosphide on silica for nonlinear and ultrafast nanophotonics
spellingShingle Nanostructured amorphous gallium phosphide on silica for nonlinear and ultrafast nanophotonics
Tilmann, Benjamin
Amorphous Gallium Phosphide
Second harmonic generation
Ultrafast optics
title_short Nanostructured amorphous gallium phosphide on silica for nonlinear and ultrafast nanophotonics
title_full Nanostructured amorphous gallium phosphide on silica for nonlinear and ultrafast nanophotonics
title_fullStr Nanostructured amorphous gallium phosphide on silica for nonlinear and ultrafast nanophotonics
title_full_unstemmed Nanostructured amorphous gallium phosphide on silica for nonlinear and ultrafast nanophotonics
title_sort Nanostructured amorphous gallium phosphide on silica for nonlinear and ultrafast nanophotonics
dc.creator.none.fl_str_mv Tilmann, Benjamin
Grinblat, Gustavo Sergio
Berté, Rodrigo
Özcan, Mehmet
Kunzelmann, Viktoria F.
Nickel, Bert
Sharp, Ian D.
Cortés, Emiliano
Maier, Stefan A.
Li, Yi
author Tilmann, Benjamin
author_facet Tilmann, Benjamin
Grinblat, Gustavo Sergio
Berté, Rodrigo
Özcan, Mehmet
Kunzelmann, Viktoria F.
Nickel, Bert
Sharp, Ian D.
Cortés, Emiliano
Maier, Stefan A.
Li, Yi
author_role author
author2 Grinblat, Gustavo Sergio
Berté, Rodrigo
Özcan, Mehmet
Kunzelmann, Viktoria F.
Nickel, Bert
Sharp, Ian D.
Cortés, Emiliano
Maier, Stefan A.
Li, Yi
author2_role author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Amorphous Gallium Phosphide
Second harmonic generation
Ultrafast optics
topic Amorphous Gallium Phosphide
Second harmonic generation
Ultrafast optics
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.10
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Nanophotonics based on high refractive index dielectrics relies on appreciable contrast between the indices of designed nanostructures and their immediate surrounding, which can be achieved by the growth of thin films on low-index substrates. Here we propose the use of high index amorphous gallium phosphide (a-GaP), fabricated by radio-frequency sputter deposition, on top of a low refractive index glass substrate and thoroughly examine its nanophotonic properties. Spectral ellipsometry of the amorphous material demonstrates the optical properties to be considerably close to crystalline gallium phosphide (c-GaP), with low-loss transparency for wavelengths longer than 650 nm. When nanostructured into nanopatches, the second harmonic (SH) response of an individual a-GaP patch is characterized to be more than two orders of magnitude larger than the as-deposited unstructured film, with an anapole-like resonant behavior. Numerical simulations are in good agreement with the experimental results over a large spectral and geometrical range. Furthermore, by studying individual a-GaP nanopatches through non-degenerate pump-probe spectroscopy with sub-10 fs pulses, we find a more than 5% ultrafast modulation of the reflectivity that is accompanied by a slower decaying free carrier contribution, caused by absorption. Our investigations reveal a potential for a-GaP as an adequate inexpensive and CMOS-compatible material for nonlinear nanophotonic applications as well as for photocatalysis.
Fil: Tilmann, Benjamin. Ludwig Maximilians Universitat; Alemania
Fil: Grinblat, Gustavo Sergio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
Fil: Berté, Rodrigo. Ludwig Maximilians Universitat; Alemania
Fil: Özcan, Mehmet. Ludwig Maximilians Universitat; Alemania
Fil: Kunzelmann, Viktoria F.. Technische Universitat München; Alemania
Fil: Nickel, Bert. Ludwig Maximilians Universitat; Alemania
Fil: Sharp, Ian D.. Ludwig Maximilians Universitat; Alemania
Fil: Cortés, Emiliano. Ludwig Maximilians Universitat; Alemania
Fil: Maier, Stefan A.. Ludwig Maximilians Universitat; Alemania
Fil: Li, Yi. Southern University Of Science And Technology; China
description Nanophotonics based on high refractive index dielectrics relies on appreciable contrast between the indices of designed nanostructures and their immediate surrounding, which can be achieved by the growth of thin films on low-index substrates. Here we propose the use of high index amorphous gallium phosphide (a-GaP), fabricated by radio-frequency sputter deposition, on top of a low refractive index glass substrate and thoroughly examine its nanophotonic properties. Spectral ellipsometry of the amorphous material demonstrates the optical properties to be considerably close to crystalline gallium phosphide (c-GaP), with low-loss transparency for wavelengths longer than 650 nm. When nanostructured into nanopatches, the second harmonic (SH) response of an individual a-GaP patch is characterized to be more than two orders of magnitude larger than the as-deposited unstructured film, with an anapole-like resonant behavior. Numerical simulations are in good agreement with the experimental results over a large spectral and geometrical range. Furthermore, by studying individual a-GaP nanopatches through non-degenerate pump-probe spectroscopy with sub-10 fs pulses, we find a more than 5% ultrafast modulation of the reflectivity that is accompanied by a slower decaying free carrier contribution, caused by absorption. Our investigations reveal a potential for a-GaP as an adequate inexpensive and CMOS-compatible material for nonlinear nanophotonic applications as well as for photocatalysis.
publishDate 2020
dc.date.none.fl_str_mv 2020-11
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/145816
Tilmann, Benjamin; Grinblat, Gustavo Sergio; Berté, Rodrigo; Özcan, Mehmet; Kunzelmann, Viktoria F.; et al.; Nanostructured amorphous gallium phosphide on silica for nonlinear and ultrafast nanophotonics; Royal Society of Chemistry; Nanoscale Horizons; 5; 11; 11-2020; 1500-1508
2055-6764
CONICET Digital
CONICET
url http://hdl.handle.net/11336/145816
identifier_str_mv Tilmann, Benjamin; Grinblat, Gustavo Sergio; Berté, Rodrigo; Özcan, Mehmet; Kunzelmann, Viktoria F.; et al.; Nanostructured amorphous gallium phosphide on silica for nonlinear and ultrafast nanophotonics; Royal Society of Chemistry; Nanoscale Horizons; 5; 11; 11-2020; 1500-1508
2055-6764
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://xlink.rsc.org/?DOI=D0NH00461H
info:eu-repo/semantics/altIdentifier/doi/10.1039/D0NH00461H
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Royal Society of Chemistry
publisher.none.fl_str_mv Royal Society of Chemistry
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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