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arXiv · 1211.0366

Electric Spaser in the Extreme Quantum Limit

Dabing Li·Mark I. Stockman
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Abstract

We consider theoretically the spaser excited electrically via a nanowire with ballistic quantum conductance. We show that in the extreme quantum regime, i.e., for a single conductance-quantum nanowire, the spaser with the core made of common plasmonic metals, such as silver and gold, is fundamentally possible. For ballistic nanowires with multiple-quanta or non-quantized conductance, the performance of the spaser is enhanced in comparison with the extreme quantum limit. The electrically-pumped spaser is promising as an optical source, nanoamplifier, and digital logic device for optoelectronic information processing with speed ~100 GHz to ~100 THz.

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Dabing Li, Mark I. Stockman. 2012-11-02. Electric Spaser in the Extreme Quantum Limit. https://doi.org/10.1103/physrevlett.110.106803

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