META 2021, META'12

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Enhanced Absorption via Light Trapping using Cholesteric Liquid Crystals
Themos Kallos, Vassilios Yannopapas, Demetri Photinos

Last modified: 2011-12-01


A device that utilizes photonic crystals to significantly enhance the absorption of incident circularly polarized radiation at visible wavelengths is studied. An optical diode based on cholesteric and nematic liquid crystals is utilized to create an optical trapping effect in both planar and cylindrical geometries. Via full-wave simulations it is shown that combining the proposed device with weakly absorbing materials results in the doubling of their overall absorption efficiency.


metamaterials; photonic crystals; absorbers; optical diodes;

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