Abstract

We analytically examine propagation of surface plasmon polaritons (SPPs) at a thin metallic film between a glass substrate and an electromagnetically induced transparency (EIT) medium. High precision and high resolution in the frequency domain provided by EIT paves the way toward plasmonic group velocities' reduction, even by up to four orders of magnitude, and corresponding lifetime enhancement of SPPs up to microseconds.

© 2018 Optical Society of America

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