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Distributed Bragg reflector based on porous anodic alumina fabricated by pulse anodization

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Distributed Bragg reflector based on porous anodic alumina fabricated by pulse anodization

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dc.contributor.author Sulka, Grzegorz [SAP11115744] pl
dc.contributor.author Hnida, Katarzyna [USOS34486] pl
dc.date.accessioned 2015-09-03T06:10:55Z
dc.date.available 2015-09-03T06:10:55Z
dc.date.issued 2012 pl
dc.identifier.issn 0957-4484 pl
dc.identifier.uri http://ruj.uj.edu.pl/xmlui/handle/item/15308
dc.language eng pl
dc.title Distributed Bragg reflector based on porous anodic alumina fabricated by pulse anodization pl
dc.type JournalArticle pl
dc.abstract.en In this paper, we demonstrate a distributed Bragg reflector (DBR) based on nanoporous anodic aluminum oxide (AAO) formed by pulse anodization. The AAO structure with alternating mild anodized (MA) and hard anodized (HA) layers having different porosities and thereby different refractive indices was fabricated in 0.3 M H 2 SO 4 using potential pulses of 25 and 35 V. The effective refractive index of the HA layers can be tailored by changing the porosity of the HA layers. The porosity of the HA layers can be significantly increased by selective chemical etching of HA segments in 0.52 M H 3 PO 4 . Before etching, the porous AAO structure was supported by a polymer nanorod frame. On the selected surface area pores were infiltrated with polymers (polystyrene and PMMA). The designed AAO structure consists of alternating high and low refractive index layers and behaves as a distributed Bragg mirror reflecting light in two different ranges of wavelength. This behavior is extremely important in optical communication lines where two separate spectral bands of high reflectivity in the infrared region are desired. pl
dc.description.volume 23 pl
dc.description.number 7 pl
dc.description.points 35 pl
dc.identifier.doi 10.1088/0957-4484/23/7/075303 pl
dc.identifier.eissn 1361-6528 pl
dc.title.journal Nanotechnology pl
dc.language.container eng pl
dc.affiliation Wydział Chemii : Zakład Chemii Fizycznej i Elektrochemii pl
dc.subtype Article pl
dc.identifier.articleid 075303 pl
dc.rights.original bez licencji pl
.pointsMNiSW [2012 A]: 35


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