Tunable narrowband plasmonic resonances in electromagnetically induced transparency media The article is now published in JOSA B David Ziemkiewicz, Karolina Słowik & Sylwia Zielińska – Raczyńska J. Opt. Soc. Am. B: Opt. Phys. 34(9), 1981-1988 (2017) arxiv.org/abs/1612.02533