Visible and infrared broadband plasmonic absorber

J. J. I. de Lima V; A. A. Souza Lins; A. M. Menezes Alexandre; P. S. Filho Sr.; V. F. Rodriguez-Esquerre

doi:10.1117/12.2595773

1 August 2021 Visible and infrared broadband plasmonic absorber

J. J. I. de Lima V, A. A. Souza Lins, A. M. Menezes Alexandre, P. S. Filho Sr., V. F. Rodriguez-Esquerre

Proceedings Volume 11831, Infrared Sensors, Devices, and Applications XI; 118310C (2021) https://doi.org/10.1117/12.2595773
Event: SPIE Optical Engineering + Applications, 2021, San Diego, California, United States

Abstract

In this paper, the properties of broadband absorbers for visible and near-infrared frequencies, based on multilayered metal-insulator (MI) structures have been analyzed. In our analysis, we have considered Titanium as metal and Silicon Nitride (Si3N4) as dielectric. In addition, the effect of the incident angle on the absorption properties of transverse magnetic and transverse electric polarized waves has been also investigated. Further, the influence of structural geometrical parameters has been studied in order to maximize the absorption and bandwidth. We believe that our results can be used as practical guidelines for realization of efficient broadband visible and infrared absorbers enabling applications as filters or absorbers for visible, infrared radiation and optical communications frequencies. The Finite Element Method has been used to carry the simulations.

Conference Presentation

Citation Download Citation

J. J. I. de Lima V, A. A. Souza Lins, A. M. Menezes Alexandre, P. S. Filho Sr., and V. F. Rodriguez-Esquerre "Visible and infrared broadband plasmonic absorber", Proc. SPIE 11831, Infrared Sensors, Devices, and Applications XI, 118310C (1 August 2021); https://doi.org/10.1117/12.2595773

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