A narrow-band subwavelength plasmonic waveguide filter with asymmetrical multiple-teeth-shaped structure.
Characteristics of a multiple-teeth-shaped plasmonic filter are analyzed. As an extension of this structure, an asymmetrical multiple-teeth-shaped structure is proposed and numerically simulated by using the finite difference time domain method with perfectly matched layer absorbing boundary condition. It is found that the asymmetrical structure can realize the function of a narrow-passband filter. The central wavelength of the passband linearly increases with the simultaneous increasing of d(1) and d(2).
Tao
Jin
J
Laboratory of Photonic Information Technology, South China Normal University, Guangzhou 510006, China.
Huang
Xu Guang
XG
Lin
Xianshi
X
Zhang
Qin
Q
Jin
Xiaopin
X
D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005374:Filtration / Q000295:instrumentation*; D008027:Light; D008962:Models, Theoretical; D055096:Optical Devices; D012542:Scattering, Radiation; D020349:Surface Plasmon Resonance / Q000295:instrumentation*