Title :
Perfect narrow-band absorber based on a colloidal monolayer of core-shell microspheres
Author :
Dyachenko, P.N. ; Petrov, A.Yu. ; Eich, M.
Author_Institution :
Inst. of Opt. & Electron. Mater., Hamburg Univ. of Technol., Hamburg, Germany
Abstract :
We have studied how two-dimensional arrays of metallodielectric core-shell microspheres on a gold substrate can efficiently absorb infrared electromagnetic radiation. Our simulations indicate perfect absorption efficiencies can be achieved for resonance frequencies. Influence of core-shell microspheres geometry is studied on absorption properties.
Keywords :
absorption coefficients; dielectric materials; geometrical optics; gold; infrared spectra; micro-optics; monolayers; optical arrays; Au; absorption efficiencies; colloidal monolayer; core-shell microsphere geometry; core-shell microspheres; gold substrate; infrared electromagnetic radiation; narrow-band absorber; resonance frequencies; two-dimensional metallodielectric core-shell microsphere arrays; Absorption; Gold; Magnetic materials; Metamaterials; Resonant frequency; Substrates;
Conference_Titel :
Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS), 2013 7th International Congress on
Conference_Location :
Talence
Print_ISBN :
978-1-4799-1229-2
DOI :
10.1109/MetaMaterials.2013.6809091
