Guiding light through quasi-TE modes embedded in the radiation continuum

0574758 - ÚFE 2024 RIV US eng J - Journal Article
Petráček, J. - Kuzmiak, Vladimír - Čtyroký, Jiří - Richter, I.
Guiding light through quasi-TE modes embedded in the radiation continuum.
Optics Letters. Roč. 48, č. 13 (2023), s. 3463-3466. ISSN 0146-9592. E-ISSN 1539-4794
R&D Projects: GA ČR(CZ) GA19-00062S
Institutional support: RVO:67985882
Keywords : Photons * refraction index * Wave-guides
OECD category: Optics (including laser optics and quantum optics)
Impact factor: 3.6, year: 2022
Method of publishing: Limited access
https://doi.org/10.1364/OL.486166

We introduce a new, to the best of our knowledge, type of a bound state in the continuum (BIC) which appears in the photonic structure consisting of two coupled waveguides where one of them supports a discrete eigenmode spectrum embedded in the continuum of the other one. A BIC appears when the coupling is suppressed by suitable tuning of structural parameters. In contrast to the previously described configurations, our scheme facilitates genuine guiding of quasi-TE modes in the core with the lower refractive index. (c) 2023 Optica Publishing Group
Permanent Link: https://hdl.handle.net/11104/0345177