Plasmonic crystals for strong light-matter coupling in carbon nanotubes

• Verfasst von: Zakharko, Yuriy [VerfasserIn]
• Verfasst von: Graf, Arko [VerfasserIn]
• Verfasst von: Zaumseil, Jana [VerfasserIn]
• Titel: Plasmonic crystals for strong light-matter coupling in carbon nanotubes
• Verf.angabe: Yuriy Zakharko, Arko Graf, and Jana Zaumseil
• E-Jahr: 2016
• Jahr: 28 September 2016
• Umfang: 7 S.
• Teil: volume:16
• Teil: year:2016
• Teil: number:10
• Teil: pages:6504-6510
• Teil: extent:7
• Fussnoten: Gesehen am 01.10.2021
• Titel Quelle: Enthalten in: Nano letters
• Ort Quelle: Washington, DC : ACS Publ., 2001
• Jahr Quelle: 2016
• Band/Heft Quelle: 16(2016), 10, Seite 6504-6510
• ISSN Quelle: 1530-6992
• DOI: doi:10.1021/acs.nanolett.6b03086
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1772205672

Abstract

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.