File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Detecting Thermal Cloaks via Transient Effects

TitleDetecting Thermal Cloaks via Transient Effects
Authors
Issue Date2016
Citation
Scientific Reports, 2016, v. 6 How to Cite?
Abstract© 2016 The Author(s). Recent research on the development of a thermal cloak has concentrated on engineering an inhomogeneous thermal conductivity and an approximate, homogeneous volumetric heat capacity. While the perfect cloak of inhomogeneous ? and inhomogeneous £cpis known to be exact (no signals scattering and only mean values penetrating to the cloak's interior), the sensitivity of diffusive cloaks to defects and approximations has not been analyzed. We analytically demonstrate that these approximate cloaks are detectable. Although they work as perfect cloaks in the steady-state, their transient (time-dependent) response is imperfect and a small amount of heat is scattered. This is sufficient to determine the presence of a cloak and any heat source it contains, but the material composition hidden within the cloak is not detectable in practice. To demonstrate the feasibility of this technique, we constructed a cloak with similar approximation and directly detected its presence using these transient temperature deviations outside the cloak. Due to limitations in the range of experimentally accessible volumetric specific heats, our detection scheme should allow us to find any realizable cloak, assuming a sufficiently large temperature difference.
Persistent Identifierhttp://hdl.handle.net/10722/256663

 

DC FieldValueLanguage
dc.contributor.authorSklan, Sophia R.-
dc.contributor.authorBai, Xue-
dc.contributor.authorLi, Baowen-
dc.contributor.authorZhang, Xiang-
dc.date.accessioned2018-07-24T08:57:32Z-
dc.date.available2018-07-24T08:57:32Z-
dc.date.issued2016-
dc.identifier.citationScientific Reports, 2016, v. 6-
dc.identifier.urihttp://hdl.handle.net/10722/256663-
dc.description.abstract© 2016 The Author(s). Recent research on the development of a thermal cloak has concentrated on engineering an inhomogeneous thermal conductivity and an approximate, homogeneous volumetric heat capacity. While the perfect cloak of inhomogeneous ? and inhomogeneous £cpis known to be exact (no signals scattering and only mean values penetrating to the cloak's interior), the sensitivity of diffusive cloaks to defects and approximations has not been analyzed. We analytically demonstrate that these approximate cloaks are detectable. Although they work as perfect cloaks in the steady-state, their transient (time-dependent) response is imperfect and a small amount of heat is scattered. This is sufficient to determine the presence of a cloak and any heat source it contains, but the material composition hidden within the cloak is not detectable in practice. To demonstrate the feasibility of this technique, we constructed a cloak with similar approximation and directly detected its presence using these transient temperature deviations outside the cloak. Due to limitations in the range of experimentally accessible volumetric specific heats, our detection scheme should allow us to find any realizable cloak, assuming a sufficiently large temperature difference.-
dc.languageeng-
dc.relation.ispartofScientific Reports-
dc.titleDetecting Thermal Cloaks via Transient Effects-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.doi10.1038/srep32915-
dc.identifier.scopuseid_2-s2.0-84986620979-
dc.identifier.volume6-
dc.identifier.spagenull-
dc.identifier.epagenull-
dc.identifier.eissn2045-2322-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats