Geometrically distributed one-dimensional photonic crystals for all angle optical filters

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dc.contributor.authorC. Teeka
dc.contributor.authorS. Pipatsart
dc.contributor.authorP.P. Yupapin
dc.contributor.correspondenceP.P. Yupapin; Nanoscale Science and Engineering Research Alliance (n'Sera), Faculty of Science, King Mongkut's Institute of Technology, Ladkrabang, Bangkok 10520, Thailand; email: kypreech@kmitl.ac.th
dc.date.accessioned2025-03-10T07:37:40Z
dc.date.available2025-03-10T07:37:40Z
dc.date.issued2012
dc.description.abstractWe present the general formulation of light reflection using a series of one-dimensional (1D) photonic crystals (PCs) with different periods, which is made of nonabsorptive materials of any refractive indices.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 r c. In this letter, the exact expressions for rc, the bandgap to mid gap ratio of the PC heterostructure and the minimum number of PCs to achieve the desired range of bandgap in single and all angles of incidence have been presented. The proposed method can be used to design the optical filters for vast range of applications such as ultraviolet (UV) filters (i.e., sunglasses, eye safety glasses, UV photography filters) and visible light filters. © 2012 Wiley Periodicals, Inc.
dc.identifier.citationMicrowave and Optical Technology Letters
dc.identifier.doi10.1002/mop.27123
dc.identifier.issn10982760
dc.identifier.scopus2-s2.0-84865525569
dc.identifier.urihttps://repository.dusit.ac.th//handle/123456789/5006
dc.languageEnglish
dc.rights.holderScopus
dc.subjectBragg reflectors
dc.subjectmultilayer filters
dc.subjectone-dimensional photonic crystals
dc.titleGeometrically distributed one-dimensional photonic crystals for all angle optical filters
dc.typeArticle
mods.location.urlhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84865525569&doi=10.1002%2fmop.27123&partnerID=40&md5=966d458ac9dac1e4b421ed316a76b536
oaire.citation.endPage2536
oaire.citation.issue11
oaire.citation.startPage2533
oaire.citation.volume54
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