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ICOP & ICPET سال21 صفحات 1619-1622 برگشت به فهرست نسخه ها
Spheroidal-Shaped Nanoshell Description for Optical Properties of Metallic Nanorings
Mr. S. Mohammad Reza Safaee* 1، Dr. Mohsen Janipour1، Dr. Mohammad Azim Karami1
1- Department of elelectrical engineering
چکیده:   (1415 مشاهده)
The optical properties of a single metallic nanoring (NR) have been analyzed according to variation of thickness, inner, and outer radius effects on the extinction cross section spectrum. It is shown that, by considering constant values for inner radius and thickness, a new phenomenon in optical properties is observed. More specifically, increasing the outer radius for the aspect ratio (i.e. outer radius/thickness) of less than 3.2, results in a blue-shift in the extinction spectrum, while for the aspect ratio of greater than 3.2 a red-shift for the LSPR (localized surface plasmon resonance) wavelength occurs. Moreover, by taking constant outer radius and thickness, increasing the inner radius results in a blue-shift for the extinction spectrum. Nonetheless, increasing the thickness leads to a blue-shift for the maximum peaks of the extinction spectrum. It has been shown that the optical properties for a gold NR can be described well through the quasi-static theory of a spheroidal shaped metallic nanoshell, while the previous theory for the NRs known as “slab like model” could not justify these properties. The analytic results supports the numerical simulations.
واژه‌های کلیدی: Extinction، Localized Surface Plasmon Resonance، Nanoring، Polarizabilty
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نوع مطالعه: پژوهشي | موضوع مقاله: تخصصی
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Safaee S M R, Janipour M, Karami M A. Spheroidal-Shaped Nanoshell Description for Optical Properties of Metallic Nanorings. ICOP & ICPET. 2015; 21 :1619-1622
URL: http://opsi.ir/article-1-834-fa.html

Safaee S. Mohammad Reza، Janipour Mohsen، Karami Mohammad Azim. Spheroidal-Shaped Nanoshell Description for Optical Properties of Metallic Nanorings. کنفرانس اپتیک و فوتونیک ایران و کنفرانس مهندسی و فناوری فوتونیک ایران. 1393; 21 () :1619-1622

URL: http://opsi.ir/article-1-834-fa.html



جلد 21 - مجموعه مقالات پذیرفته و ارائه شده در بیست و یکمین کنفرانس اپتیک و فوتونیک ایران برگشت به فهرست نسخه ها
انجمن اپتیک و فوتونیک ایران Optics and Photonics Society of Iran
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