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Ultra-narrow-band light dissipation by a stack of lamellar silver and alumina
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2014 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 104, no 22, 221107- p.Article in journal (Refereed) Published
Abstract [en]

An ultra-narrow band absorber consisting of continuous silver and alumina films is investigated. Owing to Fabry-Perot resonance and silver's inherent loss, an ultra-narrow spectral range of light can be entirely trapped in the structure. By varying thicknesses of metallic and dielectric films, absorption peak shifts in visible and near-infrared regions. When two such metal-insulator-metal stacks are cascaded, experimental results show that an ultra-narrow absorption bandwidth of 7 nm is achieved, though theoretical results give that of 2 nm. Features of high-efficiency and ultra-narrow band absorption have huge potential in optical filtering, thermal emitter design, etc.

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2014. Vol. 104, no 22, 221107- p.
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URN: urn:nbn:se:kth:diva-147946DOI: 10.1063/1.4881267ISI: 000337161700007ScopusID: 2-s2.0-84902438633OAI: diva2:734059
Swedish Research Council

QC 20140714

Available from: 2014-07-14 Created: 2014-07-10 Last updated: 2014-07-14Bibliographically approved

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Chen, YitingYan, MinQiu, Min
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