Perfect narrow-band absorber based on a monolayer of metallodielectric microspheres

Publikationstyp
Journal Article
Date Issued
2013-11-19
Sprache
English
Author(s)
Dyachenko, Pavel N.  
Petrov, Alexander  orcid-logo
Eich, Manfred  
Institut
Optische und Elektronische Materialien E-12  
TORE-URI
http://hdl.handle.net/11420/6108
Journal
Applied physics letters  
Volume
103
Issue
21
Article Number
211105
Citation
Applied Physics Letters 21 (103): Art. 211105 (2013)
Publisher DOI
10.1063/1.4832071
Scopus ID
2-s2.0-84888405286
Publisher
American Institute of Physics
We have studied how two-dimensional arrays of metallodielectric core-shell microspheres on a metal substrate can efficiently absorb infrared electromagnetic radiation in a narrow wavelength range under normal incidence. Our simulations indicate that perfect absorption efficiencies can be achieved for resonance wavelengths. The influence of core-shell microspheres geometry and lattice geometry is studied on absorption properties. For wavelength from 1.2 μm to 2.6 μm, an optimal combination of sphere and core radius was obtained to provide perfect absorption which can be wavelength adjusted. © 2013 AIP Publishing LLC.
DDC Class
530: Physik
600: Technik
620: Ingenieurwissenschaften