کنفرانس مهندسی برق ایران

صفحه اصلی / بیست و نهمین کنفرانس مهندسی برق ایران

Design of a plasmonic MIM filter based on ring resonator incorporating circular air holes

نویسندگان :

Sara Gholinezhad Shafagh¹ Hassan Kaatuzian² Mohammad Danaie³

1- دانشگاه صنعتی امیرکبیر 2- دانشگاه صنعتی امیرکبیر 3- دانشگاه سمنان

کلمات کلیدی :

Surface Plasmon Polaritons, Plasmonics, Photonic crystals, Muultiple-mode, Transmittance, Quality factor, Band Pass Filter , FDTD Algorithm.

چکیده :

A new photonic plasmonic metal-insulator-metal (MIM) band pass filter has been proposed. This paper has shown some benefits from this new design, which includes photonic crystals, and works in a longer wavelength as well as it is sensitive to the size parameters of photonic crystals and the resonator. The proposed structure has a multiple-mode with two resonance wavelengths; each of them has an acceptable transmission peak and a better-quality factor than the previous structures. One of the main advantages of the structure is to provide a dual-mode filter with the best quality in the wavelength range of 700 to 2000 nm. This aim will be obtained by adjusting the size of geometric parameters in the suggested filter. As a result, a tunable band pass filter will be created to have the improvement of characteristics. The proposed structure has been numerically investigated using the finite difference time domain (FDTD) method. In our designed filter, the maximum quality-factor (Q-Factor), the minimum FWHM, and the maximum transmittance (T_max) are estimated to be 62.79, 13.13, and 70%, respectively and the longer resonance wavelength is 1754 nm.