Maksymov, IvanMiroshnichenko, Andrey2015-12-10August 289780977565771http://hdl.handle.net/1885/57456We suggest a novel all-optical spectral tuning mechanism over subwavelength light focusing with a plasmonic nanorod nanoantenna. The tunability originates from the manipulation of Fano resonances in an auxiliary intermediate resonator that couples the nanoantenna with a far-field light source. Our approach presents a decisive step toward active spectral tuning of plasmonic nanoantennas without relying on nonlinear optical effects or mechanical reconfiguration of the antenna.Keywords: All-optical; Fano resonances; Far-field; Mechanical reconfiguration; Nanoantennas; Nonlinear optical effects; Plasmonic; Spectral tuning; Subwavelength lights; Tunabilities; Light sources; Nanorods; Optical fibers; Optics; Plasmons; Quantum electronics; T201110.1109/IQEC-CLEO.2011.61939292016-02-24