Nano Archive

Photon antibunching in the photoluminescence spectra of a single carbon nanotube

Hoegele, Alexander and Galland, Christophe and Winger, Martin and Imamoglu, Atac (2008) Photon antibunching in the photoluminescence spectra of a single carbon nanotube. PHYSICAL REVIEW LETTERS, 100 (21).

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Official URL: http://link.aps.org/doi/10.1103/PhysRevLett.100.21...

Abstract

We report the first observation of photon antibunching in the photoluminescence from single carbon nanotubes. The emergence of a fast luminescence decay component under strong optical excitation indicates that Auger processes are partially responsible for inhibiting two-photon generation. Additionally, the presence of exciton localization at low temperatures ensures that nanotubes emit photons predominantly one by one. The fact that multiphoton emission probability can be smaller than 5% suggests that carbon nanotubes could be used as a source of single photons for applications in quantum cryptography.

Item Type:Article
Subjects:Physical Science > Nano objects
Physical Science > Quantum phenomena
Physical Science > Photonics
Engineering > Nanotechnology applications in ICT
ID Code:546
Deposited By:IoN
Deposited On:20 Jan 2009 16:35
Last Modified:20 Jan 2009 16:35

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