On obtaining the coupled-mode theory using a model of coupled plane waves for symmetric resonant diffraction gratings
We consider two analytical models describing resonant scattering of light by resonant diffraction gratings possessing a horizontal symmetry plane. For the case of oblique incidence, a multiple interference model is formulated, on the basis of which, a new approach for deriving the coupled-mode theor...
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| Format: | Article |
| Language: | English |
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Samara National Research University
2024-08-01
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| Series: | Компьютерная оптика |
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| Online Access: | https://www.computeroptics.ru/eng/KO/Annot/KO48-4/480403e.html |
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| author | D.A. Bykov E.A. Bezus L.L. Doskolovich |
| author_facet | D.A. Bykov E.A. Bezus L.L. Doskolovich |
| author_sort | D.A. Bykov |
| collection | DOAJ |
| description | We consider two analytical models describing resonant scattering of light by resonant diffraction gratings possessing a horizontal symmetry plane. For the case of oblique incidence, a multiple interference model is formulated, on the basis of which, a new approach for deriving the coupled-mode theory for the considered structures is proposed. Both considered models describe resonances in the reflectance and transmittance spectra of the studied diffraction gratings arising due to the excitation of quasiguided modes and Fabry–Pérot modes. Interaction of these modes leads to the appearance of bound states in the continuum, which are also described by the proposed models. |
| format | Article |
| id | doaj-art-7f7acce9d76e4b84b070bb198b64aaf1 |
| institution | Kabale University |
| issn | 0134-2452 2412-6179 |
| language | English |
| publishDate | 2024-08-01 |
| publisher | Samara National Research University |
| record_format | Article |
| series | Компьютерная оптика |
| spelling | doaj-art-7f7acce9d76e4b84b070bb198b64aaf12025-02-08T15:59:49ZengSamara National Research UniversityКомпьютерная оптика0134-24522412-61792024-08-0148449150010.18287/2412-6179-CO-1398On obtaining the coupled-mode theory using a model of coupled plane waves for symmetric resonant diffraction gratingsD.A. Bykov 0E.A. Bezus1L.L. Doskolovich2Image Processing Systems Institute, NRC "Kurchatov Institute"; Samara National Research UniversityImage Processing Systems Institute, NRC "Kurchatov Institute"; Samara National Research UniversityImage Processing Systems Institute, NRC "Kurchatov Institute"; Samara National Research UniversityWe consider two analytical models describing resonant scattering of light by resonant diffraction gratings possessing a horizontal symmetry plane. For the case of oblique incidence, a multiple interference model is formulated, on the basis of which, a new approach for deriving the coupled-mode theory for the considered structures is proposed. Both considered models describe resonances in the reflectance and transmittance spectra of the studied diffraction gratings arising due to the excitation of quasiguided modes and Fabry–Pérot modes. Interaction of these modes leads to the appearance of bound states in the continuum, which are also described by the proposed models.https://www.computeroptics.ru/eng/KO/Annot/KO48-4/480403e.htmlcoupled-mode theorycoupled plane waves modelmultiple interference modelresonant diffraction gratingfano resonancescattering matrix |
| spellingShingle | D.A. Bykov E.A. Bezus L.L. Doskolovich On obtaining the coupled-mode theory using a model of coupled plane waves for symmetric resonant diffraction gratings Компьютерная оптика coupled-mode theory coupled plane waves model multiple interference model resonant diffraction grating fano resonance scattering matrix |
| title | On obtaining the coupled-mode theory using a model of coupled plane waves for symmetric resonant diffraction gratings |
| title_full | On obtaining the coupled-mode theory using a model of coupled plane waves for symmetric resonant diffraction gratings |
| title_fullStr | On obtaining the coupled-mode theory using a model of coupled plane waves for symmetric resonant diffraction gratings |
| title_full_unstemmed | On obtaining the coupled-mode theory using a model of coupled plane waves for symmetric resonant diffraction gratings |
| title_short | On obtaining the coupled-mode theory using a model of coupled plane waves for symmetric resonant diffraction gratings |
| title_sort | on obtaining the coupled mode theory using a model of coupled plane waves for symmetric resonant diffraction gratings |
| topic | coupled-mode theory coupled plane waves model multiple interference model resonant diffraction grating fano resonance scattering matrix |
| url | https://www.computeroptics.ru/eng/KO/Annot/KO48-4/480403e.html |
| work_keys_str_mv | AT dabykov onobtainingthecoupledmodetheoryusingamodelofcoupledplanewavesforsymmetricresonantdiffractiongratings AT eabezus onobtainingthecoupledmodetheoryusingamodelofcoupledplanewavesforsymmetricresonantdiffractiongratings AT lldoskolovich onobtainingthecoupledmodetheoryusingamodelofcoupledplanewavesforsymmetricresonantdiffractiongratings |