Geometrically distributed 1D photonic crystals for light-reflection in all angles

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dc.contributor.authorR. Jomtarak
dc.contributor.authorC. Teeka
dc.contributor.authorP. P. Yupapin
dc.contributor.correspondenceR. Jomtarak; Nanoscale Science and Engineering Research Alliance (n'Sera), Faculty of Science, King Mongkut's Institute of Technology Ladkrabang, Bangkok 10520, Thailand; email: rangsan_jom@dusit.ac.th
dc.date.accessioned2025-03-10T07:37:40Z
dc.date.available2025-03-10T07:37:40Z
dc.date.issued2012
dc.description.abstractIn this paper, we presented the general formulation of light reflection using a series of 1D PCs with different periods, made of non-absorptive materials of any refractive indices. In order to have a large bandgap - the spectral range of reflection, the periods of 1D PCs must be distributed in a geometrical progression with a common ratio, r, smaller than a maximum value of rc. The paper have presented exact expressions for rc, bandgap to mid gap ratio of the PC hetero-structure, and the minimum number of PCs to achieve the desired range of bandgap in single and all angles of incidence. The proposed method can be used to design filters for vast range of applications such as UV filters (i.e., sunglasses, eye safety glasses, UV photography filters) and visible light filters. © 2010 Published by Elsevier Ltd.
dc.identifier.citationProcedia Engineering
dc.identifier.doi10.1016/j.proeng.2012.01.1293
dc.identifier.issn18777058
dc.identifier.scopus2-s2.0-84892587256
dc.identifier.urihttps://repository.dusit.ac.th//handle/123456789/4988
dc.languageEnglish
dc.publisherElsevier Ltd
dc.rightsAll Open Access; Gold Open Access
dc.rights.holderScopus
dc.subjectBragg Reflectors
dc.subjectMultilayer
dc.subjectPhotonic Crystals
dc.titleGeometrically distributed 1D photonic crystals for light-reflection in all angles
dc.typeConference paper
mods.location.urlhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84892587256&doi=10.1016%2fj.proeng.2012.01.1293&partnerID=40&md5=6c36e3ee21124a78be3df4d22eeb1e10
oaire.citation.endPage460
oaire.citation.startPage455
oaire.citation.volume32
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