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arXiv · 1302.6604

Ultrafast plasmonics using transparent conductive oxide hybrids in the epsilon near-zero regime

Daniel Traviss·Roman Bruck·Ben Mills·Martina Abb·Otto L. Muskens
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Abstract

The dielectric response of transparent conductive oxides near the bulk plasmon frequency is characterized by a refractive index less than vacuum. In analogy with x-ray optics, it is shown that this regime results in total external reflection and air-guiding of light. In addition, the strong reduction of the wavevector in the ITO below that of free space enables a new surface plasmon polariton mode which can be excited without requiring a prism or grating coupler. Ultrafast control of the surface plasmon polariton mode is achieved with a modulation amplitude reaching 20%.

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Daniel Traviss, Roman Bruck, Ben Mills, Martina Abb, Otto L. Muskens. 2013-02-26. Ultrafast plasmonics using transparent conductive oxide hybrids in the epsilon near-zero regime. https://doi.org/10.1063/1.4798833

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