Eur. Phys. J. B (2014) 87: 252
https://doi.org/10.1140/epjb/e2014-50571-8

Regular Article

Sensitivity of surface plasmon resonances in spheroidal metal nanoparticles

Bogolyubov Institute for Theoretical Physics, NAS of Ukraine, 14-b Metrologichna Str., 03143 Kyiv, Ukraine

^a e-mail: ngrigor@bitp.kiev.ua

Received: 22 August 2014
Received in final form: 16 September 2014
Published online: 27 October 2014

Abstract

The sensitivity of the surface plasmon resonance wavelength position in prolate and oblate metal nanoparticles to the refractive index of an embedding solution, nanoparticle shape, and temperature is studied theoretically. The influence of dissipation factor on plasmon resonance is discussed as well. The new approach specifying the optimal nanoparticle shape to reach the maximal sensitivity is proposed. The calculations are illustrated on the example of Na nanoparticle.