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Optical Properties of Nanospheres

عنوان مقاله: Optical Properties of Nanospheres
شناسه ملی مقاله: AREBS01_114
منتشر شده در اولین طرح تعاملی صنعت با دانشگاه: همایش سالانه پژوهش های کاربردی در علوم مهندسی و پایه در سال 1393
مشخصات نویسندگان مقاله:

Sara Mohammadi Bilankohi - Department of Physics, Payame Noor University, P.O. BOX ۱۹۳۹۵-۳۶۹۷ Tehran, I.R. of Iran
Hossein Ghaforyan - Department of Physics, Payame Noor University, P.O. BOX ۱۹۳۹۵-۳۶۹۷ Tehran, I.R. of Iran

خلاصه مقاله:
Optical properties of core/shell silver/silica nanoparticles such as extinction, absorption and scattering cross section are studied based on Mie theory. The numerical simulation results show that optical properties of silver and silica/silver core/shell nanospheres are mainly dependent on their sizes and geometries. The wavelength corresponding to maximum extinction shifts to longer wavelengths as the size of the nanoparticle is increased. The influence of higher-order multipoles is evident for large nanoparticles, making the spectra more complex. When the shell thickness of a core/shell particle is decreased, the plasmon resonance shifts to longer wavelengths. This red shift is accompanied by an increase in peak intensity

کلمات کلیدی:
Mie Theory, Nanospheres, Optical Properties

صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/412190/