META 2021, META'12

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Dynamic Tuning and Symmetry Lowering of Fano Resonance in Plasmonic Nanostructure
Yonghao Cui, Jianhong Zhou, Venkata Tamma, Won Park

Last modified: 2012-01-03


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.


plasmonics, Fano resonance, dynamic tunability