Journal
OPTICS EXPRESS
Volume 17, Issue 14, Pages 11486-11494Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.17.011486
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Funding
- State Key Program for Basic Research of China [2006CB921804, 2009CB930501]
- National Natural Science Foundation of China [10704036, 10604029, 10534042]
- National Fundamental Fund of Personnel Training [J0630316]
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Magnetic resonance coupling between connected split ring resonators (SRRs) and magnetic plasmon (MP) excitations in the connected SRR chains were theoretically studied. By changing the connection configuration, two different coupling behaviors were observed, and therefore two kinds of MP bands were formed in the connected ring chains accordingly. From the extracted dispersion properties of MPs, forward and backward characteristics of the guided waves are well exhibited corresponding to the homo- and hetero-connected chains. Notably, thanks to the conductive coupling the revealed MP waves both have wide bandwidth even starting from the zero frequency. These results are suggested to provide instructions to build new kinds of subwavelength waveguides. (c) 2009 Optical Society of America
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