Direct determination of the resonance properties of metallic conical nanoantennas

作者:Tuccio Salvatore*; Razzari Luca; Alabastri Alessandro; Toma Andrea; Liberale Carlo; De Angelis Francesco; Candeloro Patrizio; Das Gobind; Giugni Andrea; Di Fabrizio Enzo; Zaccaria Remo Proietti
来源:Optics Letters, 2014, 39(3): 571-573.
DOI:10.1364/OL.39.000571

摘要

We present a simple method that is able to predict the resonant frequencies of a metallic conical nanoantenna. The calculation is based on an integral relation that takes into account the dependence of the effective refractive index of the plasmonic mode on the cone radius. Numerical simulations retrieving the near field properties of nanocones with different lengths are also performed for comparison. The fine agreement between the two approaches demonstrates the validity of our method.

  • 出版日期2014-2-1