Optical Properties of Different Shaped Metallic Nano particles
Abstract
In this paper Absorption, Scattering, and Extinction properties of different nanoparticles coated with gold and silver materials are studied. The simulated results show that by changing the proposed parameter for these nano-particles different LSPR (Localized surface plasmon resonance) peaks are activated in the spectra. The LSPR modes are dipole, quadrupole and octupole along with redshift. This study reveals that LSPR is strongly dependent on size. Moreover, the Extinction properties of gold-coated nanoparticles and silver-coated nanoparticles are compared. These observations and results may lead to new opportunities and applications in the field of bioimaging, biomedical and photovoltaics.
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