Dark and bright modes manipulation for plasmon-triggered photonic devices
De Angelis, F.
Proietti Zaccaria, R.
Di Fabrizio, Enzo M.
KAUST DepartmentPhysical Sciences and Engineering (PSE) Division
Biological and Environmental Sciences and Engineering (BESE) Division
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AbstractIn the last decade, several efforts have been spent in the study of near-field coupled systems, in order to induce hybridization of plasmonic modes. Within this context, particular attention has been recently paid on the possibility to couple conventional bright and dark modes. As a result of such phenomenon, a Fano resonance appears as a characteristic sharp dip in the scattering spectra. Here we show how, gradually coupling a single rod-like nanostructure to an aligned nanoantenna dimer, it is possible to induce the near-field activation of an anti-bonding dark mode. The high polarization sensitivity presented by the far-field response of T-shape trimer, combined with the sharp Fano resonance sustained by this plasmonic device, opens interesting perspectives towards a new era of photonic devices. © (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE).
CitationS. Panaro ; A. Nazir ; C. Liberale ; H. Wang ; F. De Angelis ; R. Proietti Zaccaria ; E. Di Fabrizio and A. Toma " Dark and bright modes manipulation for plasmon-triggered photonic devices ", Proc. SPIE 9163, Plasmonics: Metallic Nanostructures and Their Optical Properties XII, 91633M (September 10, 2014); doi:10.1117/12.2061187; http://dx.doi.org/10.1117/12.2061187
PublisherSPIE-Intl Soc Optical Eng
Conference/Event namePlasmonics: Metallic Nanostructures and Their Optical Properties XII