Ko, Hyungduk Ko, Doo-Hyun Cho, Younghak Han, Il Ki 2024-01-20T09:02:26Z 2024-01-20T09:02:26Z 2021-09-02 2014-09 0947-8396 https://pubs.kist.re.kr/handle/201004/126411 A broadband visible light absorber composed of multiple metal-dielectric-metal (MMDM) layers is proposed and numerically investigated. Dielectric layers of different thicknesses in the MMDM structure lead to multiple plasmon resonances at different wavelengths; as a result, efficient broadband absorption can be achieved under optimized conditions. We found that an average simulated absorption of 93 % was obtained over the entire visible spectrum of 400-700 nm by controlling the geometric parameters. Furthermore, the origin of the broadband absorption was studied, and the effects of the diameter and pitch of the pattern on the absorption were investigated. Our proposed structure with a periodic array of circular patterns represents a novel candidate for future applications in photovoltaic cells and thermal emitters. English SPRINGER SUBWAVELENGTH HOLE PERFECT ABSORBER METAL Broadband light absorption using a multilayered gap surface plasmon resonator Article 10.1007/s00339-014-8459-3 1 APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, v.116, no.3, pp.857 - 861 APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING 116 3 857 861 scie scopus 000340583500001 2-s2.0-84906316820 Materials Science, Multidisciplinary Physics, Applied Materials Science Physics Article SUBWAVELENGTH HOLE PERFECT ABSORBER METAL