Journal
OPTICS EXPRESS
Volume 19, Issue 11, Pages 10907-10912Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.19.010907
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Funding
- National Research Foundation (NRF) [K20815000003]
- Korean government (MEST) [2010-0001859]
- National Research Foundation of Korea [2008-0062256, 2008-00580] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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We use coupled mode theory (CMT) to analyze a metal-insulator-metal (MIM) plasmonic stub structure, to reveal the existence of asymmetry in its transmittance spectra. Including the effect of the near field contribution for the stub structure, the observed asymmetry is interpreted as Fano-type interference between the quasi-continuum T-junction-resonator local-modes and discrete stub eigenmodes. Based on the asymmetry factor derived from the CMT analysis, methods to control transmittance asymmetry are also demonstrated. (C) 2011 Optical Society of America
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