Tailoring surface plasmon resonance and dipole cavity plasmon modes of scattering cross section spectra on the single solid-gold/gold-shell nanorod.

Autor: Yuan-Fong Chou Chau, Chee Ming Lim, Chuanyo Lee, Hung Ji Huang, Chun-Ting Lin, Kumara, N. T. R. N., Voo Nyuk Yoong, Hai-Pang Chiang
Předmět:
Zdroj: Journal of Applied Physics; 9/7/2016, Vol. 120 Issue 9, p1-9, 9p, 5 Diagrams, 3 Graphs
Abstrakt: Tunable surface plasmon resonance (SPR) and dipole cavity plasmon modes of the scattering cross section (SCS) spectra on the single solid-gold/gold-shell nanorod have been numerically investigated by using the finite element method. Various effects, such as the influence of SCS spectra under x- and y-polarizations on the surface of the single solid-gold/gold-shell nanorod, are discussed in detail. With the single gold-shell nanorod, one can independently tune the relative SCS spectrum width by controlling the rod length and rod diameter, and the surface scattering by varying the shell thickness and polarization direction, as well as the dipole peak energy. These behaviors are consistent with the properties of localized SPRs and offer a way to optically control and produce selected emission wavelengths from the single solid-gold/gold-shell nanorod. The electric field and magnetic distributions provide us a qualitative idea of the geometrical properties of the single solid-gold/gold-shell nanorod on plasmon resonance. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index