Enhanced broadband absorption with a twisted multilayer metal-dielectric stacking metamaterial.

ABSTRACT: This study proposes and experimentally demonstrates enhanced broadband absorption with twisted multilayer metal-dielectric stacking. Compared with the traditional metal-dielectric pyramid, the resonance frequencies of the third-order magnetic resonances in the twisted quadrangular frustum redshifted obviously. Hence, the proposed structure enables an ultra-broadband absorption by combining the third-order magnetic resonances with the fundamental mode. The broadband absorption is insensitive to the incident wave polarization, whereas the twisted angle of the stacking plays an important role in deciding the absorption bandwidth. The sample was fabricated via the multi-material hybrid micro-droplet jetting modeling (MHMJM) technology to verify the enhanced absorbing performance. The me

SUBMITTER: Deng G 

PROVIDER: S-EPMC9417293 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature