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arXiv · 1907.04545

Tuning the Effective PT-Phase of Plasmonic Eigenmodes

Alessandro Tuniz·Torsten Wieduwilt·Markus A. Schmidt
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Abstract

We experimentally observe an effective PT-phase transition through the exceptional point in a hybrid plasmonic-dielectric waveguide system. Transmission experiments reveal fundamental changes in the underlying Eigenmode interactions as the environmental refractive index is tuned, which can be unambiguously attributed to a crossing through the plasmonic exceptional point. These results extend the design opportunities for tuneable non-Hermitian physics to plasmonic systems.

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Alessandro Tuniz, Torsten Wieduwilt, Markus A. Schmidt. 2019-07-10. Tuning the Effective PT-Phase of Plasmonic Eigenmodes. https://doi.org/10.1103/physrevlett.123.213903

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