Natural slab photonic crystals in centric diatoms

15 pags., 5 figs., 1 tab.

Detalles Bibliográficos
Autores: Goessling, Johannes W., Wardley, William P., López-García, Martín
Tipo de recurso: artículo
Fecha de publicación:2019
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/344247
Acceso en línea:http://hdl.handle.net/10261/344247
Access Level:acceso abierto
Palabra clave:Natural photonic crystal
Photonic band gap
Pseudogap
Biological photonics
Nanoporous silica
Diatom frustule
Diatom Girdle
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spelling Natural slab photonic crystals in centric diatomsGoessling, Johannes W.Wardley, William P.López-García, MartínNatural photonic crystalPhotonic band gapPseudogapBiological photonicsNanoporous silicaDiatom frustuleDiatom Girdle15 pags., 5 figs., 1 tab.Natural photonic crystals can serve in mating strategies or as aposematism for animals, but they also exist in some photosynthetic organisms, with potential implications for their light regulation. Some of the most abundant microalgae, named diatoms, evolved a silicate exoskeleton, the frustule, perforated with ordered pores resembling photonic crystals. Here we present the first combined experimental and theoretical characterization of the photonic properties of the diatom girdle, i.e. one of two structures assembling the frustule. We show that the girdle of the centric diatom Coscinodiscus granii is a well defined slab photonic crystal, causing, under more natural conditions when immersed in water, a pseudogap for modes in the near infrared. The pseudogap disperses towards the visible spectral range when light incides at larger angles. The girdle crystal structure facilitates in-plane propagation for modes in the green spectral range. We demonstrate that the period of the unit cell is one of the most critical factors for causing these properties. The period is shown to be similar within individuals of a long-term cultivated inbred line and between 4 different C. granii cell culture strains. In contrast, the pore diameter had negligible effects upon the photonic properties. We hence propose that critical parameters defining the photonic response of the girdle are highly preserved. Other centric diatom species, i.e. Thalasiosira pseudonana, C. radiatus and C. wailesii, present similar unit cell morphologies with various periods in their girdles. We speculate that evolution has preserved the photonic crystal character of the centric girdle, indicating an important biological functionality for this clade of diatoms.J.W.G acknowledges support and co-funding of the NanoTRAINforGrowth II program (project 2000032) by the European Commission through the Horizon 2020 Marie Sklodowska-Curie COFUND Programme (2015), and by the International Iberian Nanotechnology Laboratory. W.W and M.L.G would like to acknowledge the project POCI-01-0145-FEDER-031739 co-funded by Fundação para a Ciência e a Tecnologia and COMPETE2020.Peer reviewedBioRxivEuropean CommissionInternational Iberian Nanotechnology LaboratoryFundação para a Ciência e a Tecnologia (Portugal)202420242019info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/344247reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/EC/H2020/2000032https://doi.org/10.1101/838185Noinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3442472026-05-22T06:33:51Z
dc.title.none.fl_str_mv Natural slab photonic crystals in centric diatoms
title Natural slab photonic crystals in centric diatoms
spellingShingle Natural slab photonic crystals in centric diatoms
Goessling, Johannes W.
Natural photonic crystal
Photonic band gap
Pseudogap
Biological photonics
Nanoporous silica
Diatom frustule
Diatom Girdle
title_short Natural slab photonic crystals in centric diatoms
title_full Natural slab photonic crystals in centric diatoms
title_fullStr Natural slab photonic crystals in centric diatoms
title_full_unstemmed Natural slab photonic crystals in centric diatoms
title_sort Natural slab photonic crystals in centric diatoms
dc.creator.none.fl_str_mv Goessling, Johannes W.
Wardley, William P.
López-García, Martín
author Goessling, Johannes W.
author_facet Goessling, Johannes W.
Wardley, William P.
López-García, Martín
author_role author
author2 Wardley, William P.
López-García, Martín
author2_role author
author
dc.contributor.none.fl_str_mv European Commission
International Iberian Nanotechnology Laboratory
Fundação para a Ciência e a Tecnologia (Portugal)
dc.subject.none.fl_str_mv Natural photonic crystal
Photonic band gap
Pseudogap
Biological photonics
Nanoporous silica
Diatom frustule
Diatom Girdle
topic Natural photonic crystal
Photonic band gap
Pseudogap
Biological photonics
Nanoporous silica
Diatom frustule
Diatom Girdle
description 15 pags., 5 figs., 1 tab.
publishDate 2019
dc.date.none.fl_str_mv 2019
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/344247
url http://hdl.handle.net/10261/344247
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/EC/H2020/2000032
https://doi.org/10.1101/838185
No
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv BioRxiv
publisher.none.fl_str_mv BioRxiv
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869422688004472832
score 15.812429

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