Plasmonic electromagnetically-induced transparency in symmetric structures.
A broken symmetry is generally believed to be a prerequisite for plasmonic electromagnetically-induced transparency (EIT), since the asymmetry allows the excitation of the otherwise forbidden dark mode. Nevertheless, according to the picture of magnetic plasmon resonance (MPR)-mediated plasmonic EIT, we show that plasmonic EIT can be achieved even in symmetric structures based on the second-order MPR. This not only sharpens our understanding of the existing concept, but also provides a profound insight into the plasmonic coherent interference in the near-field zone.
Jin
Xingri
X
Quantum Photonic Science Research Center and Department of Physics, Hanyang University, Seoul, Republic of Korea.
Lu
Yuehui
Y
Zheng
Haiyu
H
Lee
YoungPak
Y
Rhee
Joo Yull
JY
Jang
Won Ho
WH
D004574:Electromagnetic Fields; D008280:Magnetics / Q000379:methods*; D055095:Optics and Photonics / Q000379:methods*; D011789:Quantum Theory; D020349:Surface Plasmon Resonance / Q000379:methods*