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Tunable plasmonically induced reflection in HRR-coupled MIM waveguide structure
摘要： In this paper, a surface plasmon optical waveguide filter with half-ring resonator (HRR) based on the metal-insulator-metal (MIM) structure was designed and numerically simulated. The results show that the transmission characteristics of the structure tuned dynamically by altering the geometrical parameters. In addition, by tuning the refractive index of the filling material in the resonator, the designed waveguide structure realized a nanoscale refractive index sensor (753nm/RIU of sensitivity). Moreover, double plasmonic induced reflection (PIR) window was also achieved by adding another rectangular resonator. The as-designed structure also offers a potential method for optoelectronic devices.
关键词： EIT-like,Surface plasmon polaritons,MIM,PIR,Waveguide resonator structure
更新于2025-09-11 14:15:04
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[Springer Series in Optical Sciences] Fano Resonances in Optics and Microwaves Volume 219 (Physics and Applications) || Multiple-Resonance Interference in Metallic Nanohole Arrays
摘要： In metallic nanohole arrays, the surface plasmon polaritons on the metal surfaces and the waveguide modes in the nanoholes are combined to form multipole surface plasmons. If these surface bound modes appear in a narrow frequency range, interference between multiple resonances and yields various resonant peak-dip structures in transmission, reflection and absorption spectra. In this chapter, we discuss the theoretical details of the mechanism of the multiple-resonance interference in metallic nanohole array systems using spatial and temporal coupled mode methods.
关键词： Fano resonance,surface plasmon polaritons,metallic nanohole arrays,waveguide modes,multiple-resonance interference,EIT-like phenomena
更新于2025-09-10 09:29:36