Boosting transparent electromagnetic interference shielding by multi-cavity resonances.
Opt Lett
; 46(7): 1648-1651, 2021 Apr 01.
Article
em En
| MEDLINE
| ID: mdl-33793508
ABSTRACT
We propose a multi-cavity resonant architecture that is established by employing two opposing ultrathin silver-based films to form a Fabry-Pérot (F-P) cavity and inserting one or two metallic mesh layers in between. Compared with the single F-P cavity, the multi-cavity architecture with one metallic mesh layer experimentally exhibits a â¼37% improvement in the average shielding effectiveness and maintains a transmittance over 80% at 550 nm. A more significant improvement of â¼108% in shielding effectiveness (SE) can be achieved by inserting two metallic mesh layers. The proposed multi-cavity architecture provides a strategy for removal of the hindrance to transparent electromagnetic interference shielding.
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2021
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Article