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Experimental Demonstration of a Multiphysics Cloak: Manipulating Heat Flux and Electric Current Simultaneously
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2014 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 113, no 20, 205501- p.Article in journal (Refereed) Published
Abstract [en]

Invisible cloaks have been widely explored in many different physical systems but usually for a single phenomenon for one device. In this Letter we make an experimental attempt to show a multidisciplinary framework that has the capability to simultaneously respond to two different physical excitations according to predetermined scenarios. As a proof of concept, we implement an electric-thermal bifunctional device that can guide both electric current and heat flux "across" a strong 'scatterer' (air cavity) and restore their original diffusion directions as if nothing exists along the paths, thus rendering dual cloaking effects for objects placed inside the cavity. This bifunctional cloaking performance is also numerically verified for a line-source nonuniform excitation. Our results and the fabrication technique presented here will help broaden the current research scope for multiple disciplines and may pave a way to manipulate multiple flows and create new functional devices, e.g., for on-chip applications.

Place, publisher, year, edition, pages
2014. Vol. 113, no 20, 205501- p.
Keyword [en]
Bifunctional device, Diffusion direction, Experimental demonstrations, Fabrication technique, Functional devices, Multiple disciplines, Non-uniform excitations, On-chip applications
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-159031DOI: 10.1103/PhysRevLett.113.205501ISI: 000346520300008Scopus ID: 2-s2.0-84910678904OAI: oai:DiVA.org:kth-159031DiVA: diva2:785686
Funder
Swedish Research Council
Note

QC 20150203

Available from: 2015-02-03 Created: 2015-01-20 Last updated: 2017-12-05Bibliographically approved

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