Metamaterial localized resonance sensors: prospects and limitations | Zendy

Claus Jeppesen | Zendy; Sanshui Xiao | Zendy; N. Asger Mortensen | Zendy; Anders Kristensen | Zendy

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Metamaterial localized resonance sensors: prospects and limitations

Author(s) -

Claus Jeppesen,

Sanshui Xiao,

N. Asger Mortensen,

Anders Kristensen

Publication year - 2010

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.18.025075

Subject(s) - laser linewidth , metamaterial , figure of merit , resonator , optics , resonance (particle physics) , sensitivity (control systems) , split ring resonator , coupling (piping) , q factor , materials science , surface plasmon resonance , physics , optoelectronics , electronic engineering , nanotechnology , atomic physics , laser , nanoparticle , metallurgy , engineering

The prospects and limitations of metamaterial localized resonance sensors are investigated theoretically and experimentally. Gold split-ring resonators are employed as the model system where the light induced LC-resonance yields a figure-of-merit, sensitivity divided by linewidth, up to 54 depending on the split-ring resonator design and engineering of the light-plasmon coupling. This highest measured value is comparable to quasi-static predictions, suggesting incremental improvements beyond this point. Further optimization attempts show the effect of inhomogeneous broadening giving some indication that the limits have been reached for this particular design and material choice.

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