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...

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Bibliographic Details
Published in:Optics express 2010-06, Vol.18 (13), p.13396-13401
Main Authors: Jin, Xingri, Lu, Yuehui, Zheng, Haiyu, Lee, YoungPak, Rhee, Joo Yull, Jang, Won Ho
Format: Article
Language:English
Subjects:
Electromagnetic Fields
Magnetics - methods
Optics and Photonics - methods
Quantum Theory
Surface Plasmon Resonance - methods
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Summary: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.
ISSN:1094-4087
1094-4087
DOI:10.1364/oe.18.013396