Volume 106, Number 4, May 2014
|Number of page(s)||5|
|Section||Interdisciplinary Physics and Related Areas of Science and Technology|
|Published online||22 May 2014|
Highly confined and tunable plasmonic waveguide ring resonator based on graphene nanoribbons
State Key Laboratory of Millimeter Waves, School of Information Science and Engineering, Southeast University Nanjing, 210096, PRC
Received: 19 January 2014
Accepted: 24 April 2014
A three-dimensional plasmonic open waveguide ring resonator (WRR) based on graphene nanoribbons, which has high confinement and multiple tunability, is proposed and numerically investigated. The intensity of edge graphene plasmons modes (EGSPs) in a nanoring resonator reaches the maximum at resonant frequencies, which indicates that EGSPs can efficiently propagate along the open graphene nanoring resonator even though in nanoscale. Furthermore, the resonant frequencies can be easily manipulated not only by adjusting the geometric parameters but also by changing the doping level of graphene via chemical doping or electrostatic gating without changing the physical size of the geometric structure. The proposed plasmonic WRR can find important potential applications in optoelectronic integrated circuits.
PACS: 81.05.ue – Graphene / 42.82.Gw – Other integrated-optical elements and systems
© EPLA, 2014
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