Plasmonic crystals for strong light-matter coupling in carbon nanotubes
Their high oscillator strength and large exciton binding energies make single-walled carbon nanotubes (SWCNTs) highly promising materials for the investigation of strong light-matter interactions in the near infrared and at room temperature. To explore their full potential, high-quality cavities—pos...
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| Main Authors: | , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
28 September 2016
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| In: |
Nano letters
Year: 2016, Volume: 16, Issue: 10, Pages: 6504-6510 |
| ISSN: | 1530-6992 |
| DOI: | 10.1021/acs.nanolett.6b03086 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1021/acs.nanolett.6b03086
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| Author Notes: | Yuriy Zakharko, Arko Graf, and Jana Zaumseil |
| Summary: | Their high oscillator strength and large exciton binding energies make single-walled carbon nanotubes (SWCNTs) highly promising materials for the investigation of strong light-matter interactions in the near infrared and at room temperature. To explore their full potential, high-quality cavities—possibly with nanoscale field localization—are required. Here, we demonstrate the room temperature formation of plasmon-exciton polaritons in monochiral (6,5) SWCNTs coupled to the subdiffraction nanocavities of a plasmonic crystal created by a periodic gold nanodisk array. The interaction strength is easily tuned by the number of SWCNTs that collectively couple to the plasmonic crystal. Angle- and polarization resolved reflectivity and photoluminescence measurements combined with the coupled-oscillator model confirm strong coupling (coupling strength ∼120 meV). The combination of plasmon-exciton polaritons with the exceptional charge transport properties of SWCNTs should enable practical polariton devices at room temperature and at telecommunication wavelengths. |
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| Item Description: | Gesehen am 01.10.2021 |
| Physical Description: | Online Resource |
| ISSN: | 1530-6992 |
| DOI: | 10.1021/acs.nanolett.6b03086 |