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Dynamic Tuning and Symmetry Lowering of Fano Resonance in Plasmonic Nanostructure
Last modified: 2012-01-03
Abstract
We present dynamic tuning and symmetry lowering of Fano resonance in gold heptamers embedded in flexible polydimethylsiloxane (PDMS) membrane. Under mechanical stress, the Fano resonance exhibited distinct behavior for different polarizations. Also, the symmetry lowering changes the nature of resonance, making optically inactive mode into optically active mode. Detailed group theoretical analysis is presented.
Keywords
plasmonics, Fano resonance, dynamic tunability