Literature DB >> 26173394

A Switchable Mid-Infrared Plasmonic Perfect Absorber with Multispectral Thermal Imaging Capability.

Andreas Tittl1, Ann-Katrin U Michel2, Martin Schäferling1, Xinghui Yin1, Behrad Gholipour3, Long Cui3, Matthias Wuttig2, Thomas Taubner2, Frank Neubrech1, Harald Giessen1,3.   

Abstract

A switchable perfect absorber with multispectral thermal imaging capability is presented. Aluminum nanoantenna arrays above a germanium antimony telluride (GST) spacer layer and aluminum mirror provide efficient wavelength-tunable absorption in the mid-infrared. Utilizing the amorphous-to-crystalline phase transition in GST, this device offers switchable absorption with strong reflectance contrast at resonance and large phase-change-induced spectral shifts.
© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Entities:  

Keywords:  GST; active plasmonics; multispectral imaging; perfect absorbers; thermal imaging

Year:  2015        PMID： 26173394     DOI： 10.1002/adma.201502023

Source DB:  PubMed          Journal:  Adv Mater        ISSN： 0935-9648            Impact factor:   30.849


  43 in total

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