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Effect of pore-level geometry on far-field radiative properties of three-dimensionally ordered macroporous ceria particle

Randrianalisoa, Jaona; Lipiński, Wojciech

Description

The effects of pore size on direction-averaged radiative properties of three-dimensionally ordered macroporous (3DOM) cerium dioxide (ceria) particles are investigated in the spectral range of 0.3-10 μm. The particles are of spherical shape and contain interconnected pores in a face-centered cubic lattice arrangement. The porous particle is modeled as a three-dimensional array of interacting dipoles using the discrete dipole approximation (DDA). The validity of the Lorenz-Mie theory to predict...[Show more]

dc.contributor.authorRandrianalisoa, Jaona
dc.contributor.authorLipiński, Wojciech
dc.date.accessioned2016-05-30T00:53:57Z
dc.date.available2016-05-30T00:53:57Z
dc.identifier.issn0003-6935
dc.identifier.urihttp://hdl.handle.net/1885/101761
dc.description.abstractThe effects of pore size on direction-averaged radiative properties of three-dimensionally ordered macroporous (3DOM) cerium dioxide (ceria) particles are investigated in the spectral range of 0.3-10 μm. The particles are of spherical shape and contain interconnected pores in a face-centered cubic lattice arrangement. The porous particle is modeled as a three-dimensional array of interacting dipoles using the discrete dipole approximation (DDA). The validity of the Lorenz-Mie theory to predict far-field radiative properties of a quasi-homogeneous particle with the effective optical properties obtained using the volume-averaging theory (VAT) is demonstrated. Direction-averaged extinction, scattering, and absorption efficiency factors as well as the scattering asymmetry factor are determined as a function of the pore size for a particle of 1 μm diameter and as a function of the particle size for pores of 400 nm diameter. The overlapping ordered pores in the 3DOM particles and the boundary effects in the presence of pores of size comparable to that of the particle are shown to affect the radiative properties in the ultraviolet to near-infrared spectral ranges. The effects of the 3DOM pore-level features on the far-field radiative properties are not captured by the Lorenz-Mie theory combined with VAT. Consequently, the use of advanced modeling tools such as DDA is necessary. In the mid- and far-infrared spectral ranges, the effects of 3DOM pore-level features on the far-field radiative properties diminish and the approach combining the Lorenz-Mie theory and VAT is shown to be accurate.
dc.description.sponsorshipComputer grants and technical support by the ROMEO High Performance Computing Center, hosted by the University of Reims ChampagneArdenne, are gratefully acknowledged.
dc.format8 pages
dc.publisherOptical Society of America
dc.rights© 2014 Optical Society of America
dc.sourceApplied optics
dc.subjectInhomogeneous optical media
dc.subjectEffective medium theory
dc.subjectElectromagnetic optics
dc.subjectExtinction
dc.subjectScattering theory
dc.subjectScattering particles
dc.titleEffect of pore-level geometry on far-field radiative properties of three-dimensionally ordered macroporous ceria particle
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume53
dcterms.dateAccepted2014-01-22
dc.date.issued2014-02-24
local.identifier.absfor091505
local.identifier.absfor091201
local.identifier.ariespublicationU5431022xPUB162
local.publisher.urlhttp://www.osa.org/
local.type.statusPublished Version
local.contributor.affiliationRandrianalisoa, Jaona, GRESPI, University of Reims, France
local.contributor.affiliationLipinski, Wojciech, College of Engineering and Computer Science, College of Engineering and Computer Science, Research School of Engineering, The Australian National University
local.identifier.essn1539-4522
local.bibliographicCitation.issue7
local.bibliographicCitation.startpage1290
local.bibliographicCitation.lastpage1297
local.identifier.doi10.1364/AO.53.001290
local.identifier.absseo861399
dc.date.updated2016-06-14T09:14:43Z
local.identifier.scopusID2-s2.0-84942365859
local.identifier.thomsonID000332226900007
dcterms.accessRightsOpen Access
CollectionsANU Research Publications

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