Plasmon–exciton polaritonic emission lifetime dynamics under strong coupling
In this study, we investigate the contribution of resonant and non-resonant excitation conditions on the polariton decay dynamics of strongly coupled rhodamine 6G (R6G) and surface plasmon polariton (SPP). We showed proof of strong coupling between SPP and R6G exciton from the dispersion relations m...
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| Format: | Article |
| Language: | English |
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De Gruyter
2025-06-01
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| Series: | Nanophotonics |
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| Online Access: | https://doi.org/10.1515/nanoph-2025-0129 |
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| author | Jurkšaitis Povilas Anulytė Justina Spalinskaitė Evita Bužavaitė-Vertelienė Ernesta Žičkus Vytautas Banevičius Dovydas Kazlauskas Karolis Balevičius Zigmas |
| author_facet | Jurkšaitis Povilas Anulytė Justina Spalinskaitė Evita Bužavaitė-Vertelienė Ernesta Žičkus Vytautas Banevičius Dovydas Kazlauskas Karolis Balevičius Zigmas |
| author_sort | Jurkšaitis Povilas |
| collection | DOAJ |
| description | In this study, we investigate the contribution of resonant and non-resonant excitation conditions on the polariton decay dynamics of strongly coupled rhodamine 6G (R6G) and surface plasmon polariton (SPP). We showed proof of strong coupling between SPP and R6G exciton from the dispersion relations measured by total internal reflection ellipsometry (TIRE). From these it was determined that the coupling strength reaches g ≈ 200 meV. Further fluorescence methods were employed to demonstrate the emission from the lower polariton branch (LP). The fluorescence lifetime and back focal plane imaging techniques were implemented to study radiative polariton decay, for resonant and non-resonant excitation conditions. Fluorescence decay measurements of plasmonic strong coupling regime showed considerably longer (ps) than expected lifetime values (fs). In our case the measured lifetimes cannot be explained without the influence of additional energy level in emission dynamics, such as incoherent transition from exciton reservoir to lower polaritonic branch. The fundamental understanding of coherent energy exchange dynamics has potential importance for development of quantum optical nanodevices, polaritonic lasers, polariton condensation. |
| format | Article |
| id | doaj-art-3f352ca45bdb4cb19c87447abbe9a94c |
| institution | DOAJ |
| issn | 2192-8614 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Nanophotonics |
| spelling | doaj-art-3f352ca45bdb4cb19c87447abbe9a94c2025-08-20T02:41:42ZengDe GruyterNanophotonics2192-86142025-06-0114142485249310.1515/nanoph-2025-0129Plasmon–exciton polaritonic emission lifetime dynamics under strong couplingJurkšaitis Povilas0Anulytė Justina1Spalinskaitė Evita2Bužavaitė-Vertelienė Ernesta3Žičkus Vytautas4Banevičius Dovydas5Kazlauskas Karolis6Balevičius Zigmas7Plasmonics and Nanophotonics Lab., Department of Laser Technologies, Center for Physical Sciences and Technology, Saulėtekio av. 3, LT-10257Vilnius, LithuaniaPlasmonics and Nanophotonics Lab., Department of Laser Technologies, Center for Physical Sciences and Technology, Saulėtekio av. 3, LT-10257Vilnius, LithuaniaPlasmonics and Nanophotonics Lab., Department of Laser Technologies, Center for Physical Sciences and Technology, Saulėtekio av. 3, LT-10257Vilnius, LithuaniaPlasmonics and Nanophotonics Lab., Department of Laser Technologies, Center for Physical Sciences and Technology, Saulėtekio av. 3, LT-10257Vilnius, LithuaniaPlasmonics and Nanophotonics Lab., Department of Laser Technologies, Center for Physical Sciences and Technology, Saulėtekio av. 3, LT-10257Vilnius, LithuaniaVilnius University, Faculty of Physics, Institute of Photonics and Nanotechnology, Saulėtekio al. 3, LT-10257Vilnius, LithuaniaVilnius University, Faculty of Physics, Institute of Photonics and Nanotechnology, Saulėtekio al. 3, LT-10257Vilnius, LithuaniaPlasmonics and Nanophotonics Lab., Department of Laser Technologies, Center for Physical Sciences and Technology, Saulėtekio av. 3, LT-10257Vilnius, LithuaniaIn this study, we investigate the contribution of resonant and non-resonant excitation conditions on the polariton decay dynamics of strongly coupled rhodamine 6G (R6G) and surface plasmon polariton (SPP). We showed proof of strong coupling between SPP and R6G exciton from the dispersion relations measured by total internal reflection ellipsometry (TIRE). From these it was determined that the coupling strength reaches g ≈ 200 meV. Further fluorescence methods were employed to demonstrate the emission from the lower polariton branch (LP). The fluorescence lifetime and back focal plane imaging techniques were implemented to study radiative polariton decay, for resonant and non-resonant excitation conditions. Fluorescence decay measurements of plasmonic strong coupling regime showed considerably longer (ps) than expected lifetime values (fs). In our case the measured lifetimes cannot be explained without the influence of additional energy level in emission dynamics, such as incoherent transition from exciton reservoir to lower polaritonic branch. The fundamental understanding of coherent energy exchange dynamics has potential importance for development of quantum optical nanodevices, polaritonic lasers, polariton condensation.https://doi.org/10.1515/nanoph-2025-0129strong couplingplasmonicsfluorescence lifetime |
| spellingShingle | Jurkšaitis Povilas Anulytė Justina Spalinskaitė Evita Bužavaitė-Vertelienė Ernesta Žičkus Vytautas Banevičius Dovydas Kazlauskas Karolis Balevičius Zigmas Plasmon–exciton polaritonic emission lifetime dynamics under strong coupling Nanophotonics strong coupling plasmonics fluorescence lifetime |
| title | Plasmon–exciton polaritonic emission lifetime dynamics under strong coupling |
| title_full | Plasmon–exciton polaritonic emission lifetime dynamics under strong coupling |
| title_fullStr | Plasmon–exciton polaritonic emission lifetime dynamics under strong coupling |
| title_full_unstemmed | Plasmon–exciton polaritonic emission lifetime dynamics under strong coupling |
| title_short | Plasmon–exciton polaritonic emission lifetime dynamics under strong coupling |
| title_sort | plasmon exciton polaritonic emission lifetime dynamics under strong coupling |
| topic | strong coupling plasmonics fluorescence lifetime |
| url | https://doi.org/10.1515/nanoph-2025-0129 |
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