Article Synopsis
- Extreme light confinement in plasmonic nanosystems leads to innovative uses in various fields like photonics, sensor technology, and quantum information processing.
- Fullerenes, which are tiny carbon molecules, exhibit strong plasmon resonances, but the mechanisms behind these phenomena are not fully understood.
- Research reveals that electron correlations significantly influence the dynamics of giant plasmon resonances in fullerenes, with findings showing a photoemission delay of up to 300 attoseconds, potentially advancing nanoplasmonic applications.
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Article Abstract
Extreme light confinement in plasmonic nanosystems enables novel applications in photonics, sensor technology, energy harvesting, biology, and quantum information processing. Fullerenes represent an extreme case for nanoplasmonics: They are subnanometer carbon-based molecules showing high-energy and ultrabroad plasmon resonances; however, the fundamental mechanisms driving the plasmonic response and the corresponding collective electron dynamics are still elusive. Here, we uncover the dominant role of electron correlations in the dynamics of the giant plasmon resonance (GPR) of the subnanometer system C by using attosecond photoemission chronoscopy. We find a characteristic photoemission delay of up to about 300 attoseconds that is purely induced by coherent large-scale electron correlations in the plasmonic potential. These results provide insights into the nature of the plasmon resonances in subnanometer systems and open perspectives for advancing nanoplasmonic applications.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11818021 | PMC |
| http://dx.doi.org/10.1126/sciadv.ads0494 | DOI Listing |
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Article Synopsis
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