Hybridization of optical plasmonics with terahertz metamaterials to create multi-spectral filters

作者：McCrindle Iain J H; Grant James; Drysdale Timothy D; Cumming David R S^*

来源：Optics Express, 2013, 21(16): 19142-19152.

DOI：10.1364/OE.21.019142

Multi-spectral imaging systems typically require the cumbersome integration of disparate filtering materials in order to work simultaneously in multiple spectral regions. We show for the first time how a single nano-patterned metal film can be used to filter multi-spectral content from the visible, near infrared and terahertz bands by hybridizing plasmonics and metamaterials. Plasmonic structures are well-suited to the visible band owing to the resonant dielectric properties of metals, whereas metamaterials are preferable at terahertz frequencies where metal conductivity is high. We present the simulated and experimental characteristics of our new hybrid synthetic multi-spectral material filters and demonstrate the independence of the metamaterial and plasmonic responses with respect to each other.

• 出版日期2013-8-12