Propagation of electromagnetic waves in one dimensional symmetric and asymmetric Comb-like photonic structure containing defects
| Autor: | Youssef Ben-Ali, Driss Bria, Zakaria Tahri, Younes Errouas, Ilyass El kadmiri |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Physics Band gap business.industry Spectrum (functional analysis) 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Electromagnetic radiation Molecular physics law.invention Resonator Transmission (telecommunications) law Dispersion relation 0103 physical sciences Photonics 0210 nano-technology business Waveguide |
| Zdroj: | Materials Today: Proceedings. 31:S16-S23 |
| ISSN: | 2214-7853 |
| Popis: | In this paper, we study theoretically the transmission spectrum and the dispersion relation of a periodic photonic comb-like waveguide consisting of periodic segments of length d1 along which two different symmetric or asymmetric resonators of lengths d2 and d3 are grafted in each site. We study the presence of geometrical defects on the transmission spectrum. The creation of defects at the resonators levels of lengths d02 and d03 inside the perfect structure; enable to deduce the localized states (defects modes) inside the band gaps. In this research, we demonstrate the existence of two frequencies filtering with the presence of a single defect at the resonator level. In the same time, we investigate three frequencies filters in the existence of two defect resonators of lengths d02 and d03. |
| Databáze: | OpenAIRE |
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