Abstract

We present numerical simulations and microwave measurements on a loop-wire structure that acts as an effective medium exhibiting a well-defined bulk plasma frequency in the microwave regime, with an effective negative dielectric function below this plasma frequency. The dependence of this plasmonic response on the self-inductance of the constituent wire elements is made explicit. A finite structure, approximately spherical, composed of this inductive medium is studied, and reveals subwavelength surface plasmon resonances below the bulk plasma frequency.

Keywords

PlasmonMicrowavePlasmaInductanceMaterials sciencePlasma oscillationSurface plasmonKinetic inductanceCondensed matter physicsDielectricOpticsOptoelectronicsPhysicsVoltage

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Publication Info

Year
1999
Type
article
Volume
75
Issue
10
Pages
1425-1427
Citations
146
Access
Closed

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Cite This

David R. Smith, D. C. Vier, Willie J. Padilla et al. (1999). Loop-wire medium for investigating plasmons at microwave frequencies. Applied Physics Letters , 75 (10) , 1425-1427. https://doi.org/10.1063/1.124714

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DOI
10.1063/1.124714