Near-perfect absorption with a metallic grating and dielectric substrate

Yanlin Liao; Yan Zhao

doi:10.1117/1.JNP.9.093087

26 February 2015 Near-perfect absorption with a metallic grating and dielectric substrate

Yanlin Liao, Yan Zhao

Author Affiliations +

Journal of Nanophotonics, Vol. 9, Issue 1, 093087 (February 2015). https://doi.org/10.1117/1.JNP.9.093087

Abstract

We realize near-perfect absorption with a metallic grating and dielectric substrate. The simulation results show that such near-perfect absorption results from the cavity mode resonance and surface plasmonic polaritions excitation. The absorption peaks can be tuned by changing the geometric parameters or refractive indices of the surrounding materials. When the refractive index of the superstratum is smaller than that of the substrate, one can attain near-perfect absorption with a single-layer metallic grating. The simulation results also show that the absorption peak can be tuned by increasing the incidence angle.

Citation Download Citation

Yanlin Liao and Yan Zhao "Near-perfect absorption with a metallic grating and dielectric substrate," Journal of Nanophotonics 9(1), 093087 (26 February 2015). https://doi.org/10.1117/1.JNP.9.093087

Published: 26 February 2015

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