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Fallahi V, Khaledi-Nasab A. Localized Surface Plasmon Resonances of Silver Ellipsoidal Nanoparticles. ICOP & ICPET _ INPC _ ICOFS 2014; 20 :105-108
URL: http://opsi.ir/article-1-88-en.html
URL: http://opsi.ir/article-1-88-en.html
1- University of Bonab
Abstract: (7308 Views)
The finite difference time domain method (FDTD) has been used to model the extinction cross section of silver (Ag) ellipsoidal nanoparticles. The localized surface Plasmon resonance frequencies strongly depend on the size and orientation of the nanoparticles. It has been calculated the longitudinal, transverse and hybrid modes for nanoparticles with prolate spheroid geometry. The longitudinal resonance mode occurs when the electric field of incident light is along the c-axis of the prolate spheroid. Similarly, the transverse resonance mode occurs when the electric field of incident light is perpendicular to the c-axis. In our calculations, the dielectric function has been obtained according to the Drude-Sommerfeld theory.
Keywords: Extinction cross section, Mie Scattering theory, Localized surface Plasmon, Finite difference time domain
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