Picocavity modal analysis: A multiple-scattering approach for picoscopic mode coupling
Picocavities serve as exceptional platforms for extreme atomic-scale field localization, enabling opportunities for light-matter interactions at subnanometer scales. Here we introduce a scattering-theory-based mode analysis approach to model the interaction between picocavity and nanocavity modes, p...
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| Format: | Article |
| Language: | English |
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American Physical Society
2025-01-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.7.013026 |
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| _version_ | 1841555947896438784 |
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| author | Saeid Asgarnezhad-Zorgabad Jeremy J. Baumberg Ortwin Hess |
| author_facet | Saeid Asgarnezhad-Zorgabad Jeremy J. Baumberg Ortwin Hess |
| author_sort | Saeid Asgarnezhad-Zorgabad |
| collection | DOAJ |
| description | Picocavities serve as exceptional platforms for extreme atomic-scale field localization, enabling opportunities for light-matter interactions at subnanometer scales. Here we introduce a scattering-theory-based mode analysis approach to model the interaction between picocavity and nanocavity modes, providing insights into picoscopic field-field dynamics. By employing coupled-mode theory, we specifically investigate the coupling between multiple nanocavity quasinormal modes (QNMs) and a single picocavity QNM, highlighting the development of spectral correlations through mode hybridization. Our findings reveal that the induced hybridization can be controlled by adjusting the picocavity geometry and the frequency spacing of the excited modes. This strong field-field coupling at picoscopic scales leads to spectral mixing, which alters the optical density of states, facilitates the identification of Fano resonances, and produces spectrally stable picocavity modes with modified mode-mixing characteristics. Furthermore, the coupled-mode framework enables the modeling of quantum dynamics resembling the Jaynes-Cummings model, describing the interaction between a hybridized two-level system and a quantized picocavity field. These insights into picoscopic light-matter interactions pave the way for advancements in subnanometer photonic quantum dynamics. |
| format | Article |
| id | doaj-art-0534ce2814404d43a2dca01afb0dee2b |
| institution | Kabale University |
| issn | 2643-1564 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj-art-0534ce2814404d43a2dca01afb0dee2b2025-01-07T15:24:06ZengAmerican Physical SocietyPhysical Review Research2643-15642025-01-017101302610.1103/PhysRevResearch.7.013026Picocavity modal analysis: A multiple-scattering approach for picoscopic mode couplingSaeid Asgarnezhad-ZorgabadJeremy J. BaumbergOrtwin HessPicocavities serve as exceptional platforms for extreme atomic-scale field localization, enabling opportunities for light-matter interactions at subnanometer scales. Here we introduce a scattering-theory-based mode analysis approach to model the interaction between picocavity and nanocavity modes, providing insights into picoscopic field-field dynamics. By employing coupled-mode theory, we specifically investigate the coupling between multiple nanocavity quasinormal modes (QNMs) and a single picocavity QNM, highlighting the development of spectral correlations through mode hybridization. Our findings reveal that the induced hybridization can be controlled by adjusting the picocavity geometry and the frequency spacing of the excited modes. This strong field-field coupling at picoscopic scales leads to spectral mixing, which alters the optical density of states, facilitates the identification of Fano resonances, and produces spectrally stable picocavity modes with modified mode-mixing characteristics. Furthermore, the coupled-mode framework enables the modeling of quantum dynamics resembling the Jaynes-Cummings model, describing the interaction between a hybridized two-level system and a quantized picocavity field. These insights into picoscopic light-matter interactions pave the way for advancements in subnanometer photonic quantum dynamics.http://doi.org/10.1103/PhysRevResearch.7.013026 |
| spellingShingle | Saeid Asgarnezhad-Zorgabad Jeremy J. Baumberg Ortwin Hess Picocavity modal analysis: A multiple-scattering approach for picoscopic mode coupling Physical Review Research |
| title | Picocavity modal analysis: A multiple-scattering approach for picoscopic mode coupling |
| title_full | Picocavity modal analysis: A multiple-scattering approach for picoscopic mode coupling |
| title_fullStr | Picocavity modal analysis: A multiple-scattering approach for picoscopic mode coupling |
| title_full_unstemmed | Picocavity modal analysis: A multiple-scattering approach for picoscopic mode coupling |
| title_short | Picocavity modal analysis: A multiple-scattering approach for picoscopic mode coupling |
| title_sort | picocavity modal analysis a multiple scattering approach for picoscopic mode coupling |
| url | http://doi.org/10.1103/PhysRevResearch.7.013026 |
| work_keys_str_mv | AT saeidasgarnezhadzorgabad picocavitymodalanalysisamultiplescatteringapproachforpicoscopicmodecoupling AT jeremyjbaumberg picocavitymodalanalysisamultiplescatteringapproachforpicoscopicmodecoupling AT ortwinhess picocavitymodalanalysisamultiplescatteringapproachforpicoscopicmodecoupling |