Open AccessSurface plasmon polaritons broadband band-stop filter based on EIT effect modulation
Author(s) -
Junhao Niu,
Wei Luo,
Aijun Zhu,
Jiajie Wang,
Benxin Zhang
Publication year - 2021
Publication title -
materials research express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.383
H-Index - 35
ISSN - 2053-1591
DOI - 10.1088/2053-1591/abed6a
Subject(s) - surface plasmon polariton , stopband , broadband , filter (signal processing) , electromagnetically induced transparency , optical filter , band pass filter , electronic engineering , optics , modulation (music) , optoelectronics , computer science , materials science , acoustics , plasmon , surface plasmon , physics , engineering , computer vision
The filter is one of the most important key elements of electronic circuit. With the rapid development of information, traditional electrical filters can no longer meet the requirements of fast information processing speed and low loss. All optical information processing is considered as one of the solutions to solve this problem. Therefore, there is great significance for studying the all-optical filter. Here, we put forward a kind of broadband band-stop filter which based on surface plasmon polaritons (SPPs) metal - insulator - metal (MIM) modulating by electromagnetically induced transparency (EIT) resonance. We use the finite element method for numerical simulation, and further research on the factors influencing the transmission characteristics of this structure by adjusting the geometric structure. Compared with similar SPPs-based filters, the proposed structure realizes broad stopband, and we can change the EIT resonance to modulate the band-stop filter wavelength range. The proposed broadband band-stop filter based on EIT effect modulation may have great potential in the next generation of all-optical information processing and communication.