CST – Computer Simulation Technology

Broadband scattering by tapered nanoantennas
Isabelle Staude, Ivan S. Maksymov, Manuel Decker, Andrey E. Miroshnichenko, Dragomir N. Neshev, Chennupati Jagadish, Yuri S. Kivshar
Rapid Research Letter
Volume: 6, Issue: 12, December 2012
nanoantennas, nanoplasmonics, nanophotonics, light scattering
We realize a new design of tapered Yagi–Uda nanoantennas and experimentally study their far-field light scattering. We show that in comparison with untapered structures the tapered nanoantennas exhibit broadband resonances featuring a distinct line shape. Our observations are supported by numerical calculations, which further reveal the tapered nanoantenna’s wavelength-dependent optical near-field confinement.

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