Toward theoretically limited SPP propagation length above two hundred microns on ultra-smooth silver surface

Aleksandr S. Baburin; Aleksey S. Kalmykov; Roman V. Kirtaev; Dmitriy V. Negrov; Dmitriy O. Moskalev; Ilya A. Ryzhikov; Pavel N. Melentiev; Ilya A. Rodionov; Victor I. Balykin

arXiv · 1806.07606

Toward theoretically limited SPP propagation length above two hundred microns on ultra-smooth silver surface

Aleksandr S. Baburin·Aleksey S. Kalmykov·Roman V. Kirtaev·Dmitriy V. Negrov·Dmitriy O. Moskalev·Ilya A. Ryzhikov·Pavel N. Melentiev·Ilya A. Rodionov·Victor I. Balykin

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Abstract

We demonstrate the optical medium for surface plasmon - polariton waves (SPP) propagation with ultra low losses corresponding to the theoretically limited values. The unique element of the optical medium is an atomically-flat single-crystalline silver thin film which provides extremely low losses. The SPP excited on the surface of such thin films (at 780 nm) is characterized by a SPP propagation length equals to 200 um, which is twice longer than previously reported experimental results and corresponds to theoretically limited values for silver films.

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Aleksandr S. Baburin, Aleksey S. Kalmykov, Roman V. Kirtaev, Dmitriy V. Negrov, Dmitriy O. Moskalev, Ilya A. Ryzhikov, Pavel N. Melentiev, Ilya A. Rodionov, Victor I. Balykin. 2018-06-20. Toward theoretically limited SPP propagation length above two hundred microns on ultra-smooth silver surface. https://arxiv.org/abs/1806.07606

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