Abstract
Plasmonic nanoparticles have been extensively studied in the literature due to their ability of supporting localized surface plasmon (LSP) modes, with great applications in nanolocalization of optical energies, hence opening up a new field of optical nanoantennas. However, despite their relatively large radiative and Ohmic losses, their operational bandwidth is narrow, which hinders them from applications in ultrafast optics. Moreover, the coupling efficiency of the far-field optical radiation to single nanoantennas is quite low, due to the extremely small volume of interaction of the optical light with nanoantennas.
© 2015 IEEE
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