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| Natura: | Preprint |
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2024
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| Accesso online: | https://arxiv.org/abs/2411.00996 |
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| _version_ | 1866913570361442304 |
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| author | Kestyn, James Yngvesson, Sigfrid K. Polizzi, Eric |
| author_facet | Kestyn, James Yngvesson, Sigfrid K. Polizzi, Eric |
| contents | This paper presents real-time time-dependent density functional theory (TDDFT) ab-initio simulations of selected armchair carbon nanotubes (CNTs). By scaling the lengths of CNTs, we provide a comprehensive analysis of the Tomonaga-Luttinger (T-L) 1-D plasmon velocities, confirming consistency with theoretical predictions and experimental observations. Our findings include detailed visual representations of excitation densities at various resonances. Furthermore, we explore the coupling between T-L plasmons and single electron excitations, identifying distinct 1-D polariton behaviors, such as strong harmonic generation due to nonlinearities, as well as energy gaps that differ from conventional 2-D polaritons. The study highlights the unique properties of armchair SWCNTs as low-loss nanocavity resonators, demonstrating potential applications in strong light-matter coupling and other nanophotonic devices. The simulation framework employed here opens avenues for further research into 1-D plasmonic phenomena and electronic spectroscopy in complex nanostructures. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_00996 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | One-dimensional Plasmons and Hybridized Coupled Polaritons in Carbon Nanotubes Kestyn, James Yngvesson, Sigfrid K. Polizzi, Eric Mesoscale and Nanoscale Physics This paper presents real-time time-dependent density functional theory (TDDFT) ab-initio simulations of selected armchair carbon nanotubes (CNTs). By scaling the lengths of CNTs, we provide a comprehensive analysis of the Tomonaga-Luttinger (T-L) 1-D plasmon velocities, confirming consistency with theoretical predictions and experimental observations. Our findings include detailed visual representations of excitation densities at various resonances. Furthermore, we explore the coupling between T-L plasmons and single electron excitations, identifying distinct 1-D polariton behaviors, such as strong harmonic generation due to nonlinearities, as well as energy gaps that differ from conventional 2-D polaritons. The study highlights the unique properties of armchair SWCNTs as low-loss nanocavity resonators, demonstrating potential applications in strong light-matter coupling and other nanophotonic devices. The simulation framework employed here opens avenues for further research into 1-D plasmonic phenomena and electronic spectroscopy in complex nanostructures. |
| title | One-dimensional Plasmons and Hybridized Coupled Polaritons in Carbon Nanotubes |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2411.00996 |