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Switchable wavelength-selective and diffuse metamaterial absorber/emitter with a phase transition spacer layer


Abstract We numerically demonstrate a switchable metamaterial absorber/emitter by thermally turning on or off the excitation of magnetic resonance upon the phase transition of vanadium dioxide (VO2). Perfect absorption peak exists around the wavelength of 5 lm when the excitation of magnetic resonance is supported with the insulating VO2 spacer layer. The wavelength-selective absorption is switched off when the magnetic resonance is disabled with metallic VO2 that shorts the top and bottom metallic structures. The resonance wavelength can be tuned with different geometry, and the switchable metamaterial exhibits diffuse behaviors at oblique angles. The results would facilitate the design of switchable metamaterials for active control in energy and s... (more)
Created Date 2014-08-19
Contributor Wang, Hao (Author) / Wang, Yue (Author) / Wang, Liping (Author) / Ira A. Fulton Schools of Engineering / School for the Engineering of Matter, Transport and Energy
Series APPLIED PHYSICS LETTERS
Type Text
Extent 6 pages
Language English
Identifier DOI: 10.1063/1.4893616
Rights All Rights Reserved
Citation Wang, Hao and Yang, Yue and Wang, Liping (2014). Switchable wavelength-selective and diffuse metamaterial absorber/emitter with a phase transition spacer layer, Applied Physics Letters, 105:071907, DOI:http://dx.doi.org/10.1063/1.4893616.
Collaborating Institutions ASU Library
Additional Formats MODS / OAI Dublin Core / RIS


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