High-Q Resonant Modes in Periodic Stubbed Structure
| Autor: | Rezzouk, Yamina, El Ghafiani, Mohamed, Khattou, Soufyane, Amrani, Madiha, El Boudouti, El Houssaine, Talbi, Abdelkrim, Djafari-Rouhani, Bahram |
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| Přispěvatelé: | University of Mohammed I - Université Mohammed Premier, Université Mohammed Premier [Oujda], Laboratoire International associé sur les phénomènes Critiques et Supercritiques en électronique fonctionnelle, acoustique et fluidique (LIA LICS/LEMAC), Centrale Lille-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF), Acoustique Impulsionnelle & Magnéto-Acoustique Non linéaire - Fluides, Interfaces Liquides & Micro-Systèmes - IEMN (AIMAN-FILMS - IEMN), Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 (IEMN), Centrale Lille-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF)-JUNIA (JUNIA), Université catholique de Lille (UCL)-Université catholique de Lille (UCL)-Centrale Lille-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF)-JUNIA (JUNIA), Université catholique de Lille (UCL)-Université catholique de Lille (UCL), Physique - IEMN (PHYSIQUE - IEMN), no information |
| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Lecture Notes in Electrical Engineering ISBN: 9789811962226 ICEERE 2022 ICEERE 2022, May 2022, Saidia, Morocco. pp.223-230, ⟨10.1007/978-981-19-6223-3_25⟩ |
| Popis: | International audience; Bound states in the continuum (BICs) have unique properties and significant applications in photonics. In this paper, we show analytically and experimentally the existence of (N−1) BICs (multi-BICs) in the flat band of a periodic photonic comb made of N stubs of length d2 separated by segments of length d1. These BICs occur when d1 and d2 are taken commensurate at a given frequency, which turn to quasi-BICs (multi-Fano resonances) when d1and d2 are taken slightly different from the BIC position. The signature of BICs and quasi-BICs can be observed in the transmission and density of states (DOS) spectra. We show that BICs are characterized by an infinite Q factor resonances, while quasi-BICs give rise to high-Q factor resonances that grow cubically with N. Our study improves the theoretical comprehension of BICs in stubbed structure and provides useful guidelines for future applications. |
| Databáze: | OpenAIRE |
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