Technical Characteristics Improvement of a Single-Mode High Q-Factor Plasmonic Filter with variations of Structural Parameters
Paper ID : 1462-ICNS
Sara Gholinezhad Shafagh1, Hassan Kaatuzian2, Mohammad Danaie3, Leila Hajshahvaladi *4
1Photonics Research Lab.(PRL), Electrical Engineering Department, Amirkabir University of Technology, Tehran, Iran
2Professor of Electrical Engineering Dept., Amirkabir University of Technology (Tehran Polytechnic)
3Semnan University, Electrical and Computer Engineering Faculty, Semnan, Iran
4Department of Electrical Engineering, Amirkabir University of Technology, Tehran, Iran
A new plasmonic bandpass filter has been proposed. This paper has shown some benefits from this new design which is sensitive to the size parameters of waveguides and the resonator. The proposed structure has a single-mode with resonance wavelength, 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 single-mode filter with the best quality in the wavelength range of 600 to 2000 nm. This aim will be obtained by adjusting the size of geometric parameters in the suggested filter. As a result, a tunable bandpass filter will be created to have the improvement of characteristics. The proposed structure has been numerically investigated using finite difference time domain (FDTD) method. In our designed plasmonic filter, the quality-factor (Q-Factor) and maximum transmittance (T_max) are estimated to be 75, and 62.3%, respectively and the resonance wavelength is 760 nm.
Surface Plasmon Polariton (SPP); Plasmonic filter; Single-Mode; Transmittance; Quality Factor
Status : Abstract Accepted (Poster Presentation)