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Enhancement transmittance of a metamaterial filter based on local surface plasma resonance
Published online by Cambridge University Press: 19 March 2018
Abstract
In this paper, a single-band local surface plasmon mode resonance metamaterial filter is calculated and simulated. The damping constant of the gold film is optimized in simulations to eliminate the effects of the grain boundary and the surface scattering on the transmission property. The transmission property of the designed metamaterial filter can be enhanced through optimizing structural parameters (the vertical distance or radius of the gold particle). Two narrow transmission bands are achieved due to the electric field enhancement effect. The electric field enhancement factor η = |E|/|E 0| is used to reveal the electric field resonance strength change. Higher transmission peak and larger field enhancement factor can be achieved than the pure gold hole array structure.
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- Research Letters
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- Copyright © Materials Research Society 2018
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