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Proceedings Paper

Active epsilon-near-zero plasmonic waveguides to achieve exceptional points and light amplification at the nanoscale (Conference Presentation)

Paper Abstract

We will demonstrate that the incorporation of active media with extremely small gain coefficients inside epsilon-near-zero (ENZ) plasmonic waveguides will cause the formation of exceptional points and spectral singularities (light amplification). Note that the realization of these points with symmetric reciprocal plasmonic configurations is still elusive mainly due to the weak light-matter interaction at the nanoscale. These intriguing effects will lead to several novel functionalities, such as reflectionless ENZ response, slow light, and nanolasing. Moreover, we will demonstrate that the entanglement of two or multiple emitters placed inside the ENZ nanochannels, even without incorporating gain (lossy ENZ case), will be enhanced over extended areas, which are comparable or even longer than the wavelength of the emitted radiation. Our findings can be applied to improve the response of optical quantum computers, such as the efficient control of long distance entanglement between qubits.

Paper Details

Date Published: 9 September 2019
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Proc. SPIE 11081, Active Photonic Platforms XI, 1108122 (9 September 2019);
Show Author Affiliations
Christos Argyropoulos, Univ. of Nebraska-Lincoln (United States)
Ying Li, Univ. of Nebraska-Lincoln (United States)


Published in SPIE Proceedings Vol. 11081:
Active Photonic Platforms XI
Ganapathi S. Subramania; Stavroula Foteinopoulou, Editor(s)

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