Title :
Plasmon resonances in the scattering and absorption of light by a circular gold nanotube
Author :
Velichko, Elena A.
Author_Institution :
Dept. of Quantum Electron., Inst. of Radio-Phys. & Electron., Kharkiv, Ukraine
Abstract :
We study the scattering and absorption of the H-polarized light by a circular gold nanotube filled in with a dielectric material and placed into a homogeneous medium, using the separation of variables. The scattering, absorption and extinction cross-sections are calculated. The computed spectra display hybrid localized surface-plasmon resonances of the dipole and quadrupole type. Analytical equations are derived for their resonance wavelengths and in-resonance near fields are shown.
Keywords :
absorption coefficients; dielectric materials; extinction coefficients; gold; light polarisation; light scattering; nanotubes; surface plasmon resonance; Au; H-polarized light absorption; H-polarized light scattering; analytical equations; circular gold nanotube; computed spectra; dielectric material; extinction cross-sections; homogeneous medium; in-resonance near fields; localized surface-plasmon resonances; resonance wavelengths; variable separation; Absorption; Electron tubes; Gold; Nanobioscience; Plasmons; Scattering; Sensors; gold; localized surface plasmon resonance; nanotube; scattering;
Conference_Titel :
Electronics and Nanotechnology (ELNANO), 2014 IEEE 34th International Conference on
Conference_Location :
Kyiv
Print_ISBN :
978-1-4799-4581-8
DOI :
10.1109/ELNANO.2014.6873973
