TY - JOUR T1 - Computing Scattering Cross Section of Gold Nanoparticles and SiO2@Au Core-Shell and Size Effect on the Scattered Wave Using COMSOL MULTIPHYSICS Software TT - محاسبه سطح مقطع پراکندگی نانو ذرات کروی طلا و سیلیکا@طلا و بررسی تاثیر ابعاد ذره بر موج پراکنده شده با استفاده از نرم افزارکامسول JF - opsi JO - opsi VL - 26 IS - 0 UR - http://opsi.ir/article-1-1968-en.html Y1 - 2020 SP - 21 EP - 24 KW - Scattering Cross Section KW - Extinction Coefficient KW - SiO2@Au nanoparticle KW - Gold Nanoparticle N2 - In this paper scattering, absorption and extinction cross section of spherical Gold nanoparticle and Silica/Gold core/shell was computed using COMSOL MULTIPHYSICS based on Poynting vector integral and heat generated by loss of scattered wave. Effect of change in size of nanoparticle on the scattering cross section also have been studied by applying frequency and size dependencies of refractive index of Gold and Silica. M3 ER -