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Liquid crystal necklaces: cholesteric drops threaded by thin cellulose fibres

2013Journal article Open access
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dc.contributor.authorGeng, Yong
dc.contributor.authorSec, David
dc.contributor.authorAlmeida, Pedro L.
dc.contributor.authorLavrentovich, Oleg D.
dc.contributor.authorZumer, Slobodan
dc.contributor.authorGodinho, Maria Helena
dc.date.accessioned2013-10-20T17:27:28Z
dc.date.available2013-10-20T17:27:28Z
dc.date.issued2013
dc.description.abstractLiquid crystals in confined geometries exhibit numerous complex structures often including topological defects that are controlled by the nematic elasticity, chirality and surface anchoring. In this work, we study the structures of cholesteric droplets pierced by cellulose fibres with planar anchoring at droplet and fibre surfaces. By varying the temperature we demonstrate the role of twisting power and droplet diameter on the equilibrium structures. The observed structures are complemented by detailed numerical simulations of possible director fields decorated by defects. Three distinct structures, a bipolar and two ring configurations, are identified experimentally and numerically. Designing cholesteric liquid crystal microdroplets on thin long threads opens new routes to produce fibre waveguides decorated with complex microresonators.por
dc.identifier.citationGENG, Yong; SEC, David; ALMEIDA, Pedro L.; LAVRENTOVICH, Oleg D.; ZUMER, Slobodan; GODINHO, Maria H. - Liquid crystal necklaces: cholesteric drops threaded by thin cellulose fibres. Soft Matter. ISSN 1744-683X. Vol. 9, nr 33 (2013), p. 7928-7933.por
dc.identifier.issn1744-683X
dc.identifier.other10.1039/c3sm50900a
dc.identifier.urihttp://hdl.handle.net/10400.21/2757
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherRoyal Soc Chemistrypor
dc.subjectTopological defectspor
dc.subjectNematic dropletspor
dc.subjectMicrodropletspor
dc.subjectColloidspor
dc.subjectLaserspor
dc.titleLiquid crystal necklaces: cholesteric drops threaded by thin cellulose fibrespor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceCambridgepor
oaire.citation.endPage7933por
oaire.citation.issue33por
oaire.citation.startPage7928por
oaire.citation.titleSoft Matterpor
oaire.citation.volume9por
person.familyNameSec
person.familyNameMarques de Almeida
person.familyNameZumer
person.familyNameGodinho
person.givenNameDavid
person.givenNamePedro
person.givenNameSlobodan
person.givenNameMaria Helena
person.identifier.ciencia-id0218-71B2-2DE0
person.identifier.ciencia-idC316-7B1F-4513
person.identifier.orcid0000-0002-5328-5068
person.identifier.orcid0000-0001-7356-8455
person.identifier.orcid0000-0003-4872-9530
person.identifier.orcid0000-0002-9760-5983
person.identifier.ridB-4356-2009
person.identifier.ridK-2840-2018
person.identifier.ridJ-3679-2013
person.identifier.scopus-author-id57190384213
person.identifier.scopus-author-id7004884924
person.identifier.scopus-author-id7005654016
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublicationa655935b-79ea-4a32-b931-5dd72669b663
relation.isAuthorOfPublication429b6d71-328e-42b3-8151-15493de249b8
relation.isAuthorOfPublication97d750f8-d331-4711-945a-96d57ca31b0d
relation.isAuthorOfPublication9e92c2e7-f179-42a4-b284-2b30b769aa0b
relation.isAuthorOfPublication.latestForDiscovery97d750f8-d331-4711-945a-96d57ca31b0d

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