Designs of polarization-controlled plasmonic absorber in visible and infrared frequencies

Yifei Ren

doi:10.1117/12.2687160

6 August 2023 Designs of polarization-controlled plasmonic absorber in visible and infrared frequencies

Yifei Ren

Proceedings Volume 12781, International Conference on Optoelectronic Information and Functional Materials (OIFM 2023); 127811X (2023) https://doi.org/10.1117/12.2687160
Event: 2023 International Conference on Optoelectronic Information and Functional Materials (OIFM 2023), 2023, Guangzhou, JS, China

Abstract

Plasmonic absorber is attracted in many areas. Many metamaterial absorbers have been designed and can work effectively to achieve narrowband absorption and broadband absorption. We propose a metal-insulator-metal plasmonic absorber with polarization-controlled absorption performance in visible and infrared frequencies. The absorption efficiency is greater than 97% at the wavelength of 1378 nm and nearly 90% at the wavelength of 637 nm under TM-polarized light. Under TE-polarized light, the absorption efficiency is greater than 75% at the wavelength of 803 nm. This plasmonic absorber featuring a simple configuration and good absorption performance can be used for practical applications, such as sensing and imaging.

Citation Download Citation

Yifei Ren "Designs of polarization-controlled plasmonic absorber in visible and infrared frequencies", Proc. SPIE 12781, International Conference on Optoelectronic Information and Functional Materials (OIFM 2023), 127811X (6 August 2023); https://doi.org/10.1117/12.2687160

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KEYWORDS

Absorption

Light absorption

Gold

Plasmonics

Metamaterials

Magnetism

Absorption spectrum

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