Wavelength-Selective Near Unity Absorber Based on Fabry-Pérot Nanoresonators

Authors

DOI:

https://doi.org/10.1590/2179-10742021v20i21161

Keywords:

Electromagnetic wave absorption, Optical resonators, Resonators filters, Optical Filters

Abstract

We proposed and analyzed a planar narrow-band absorber based on a bi-layer metal/dielectric structure. The planar absorber uses the Fabry-Pérot resonance and the inherent loss of the metals, for maximum light absorption in the range of the electromagnetic spectrum visible to the near infrared. The absorption resonance peak can be shifted to other regions of the spectrum by varying the dielectric film thicknesses. It is also possible to control the absorption with the angle of incidence for TE and TM polarization modes. The high absorption (near unity) and the high tolerance to fabrication errors of the proposed absorber can be explored in a large number of optoelectronic devices.

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Published

2021-03-25

How to Cite

Gomes de Souza, I. L., & Rodriguez Esquerre, V. F. (2021). Wavelength-Selective Near Unity Absorber Based on Fabry-Pérot Nanoresonators. Journal of Microwaves, Optoelectronics and Electromagnetic Applications (JMOe), 20(2), AoP 219–227. https://doi.org/10.1590/2179-10742021v20i21161

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Regular Papers