Optical microcavity with semiconducting single-wall carbon nanotubes

Etienne Gaufrès (1) , Nicolas Izard (1, 2) , Xavier Le Roux (1) , Saïd Kazaoui (2) , Delphine Marris-Morini (1) , Eric Cassan (1) , Laurent Vivien (1)

1 IEF - Institut d'électronique fondamentale
2 AIST - National Institute of Advanced Industrial Science and Technology

We report studies of optical Fabry-Perot microcavities based on semiconducting single-wall carbon nanotubes with a quality factor of 160. We experimentally demonstrate a huge photoluminescence signal enhancement by a factor of 30 in comparison with the identical film and by a factor of 180 if compared with a thin film containing non-purified (8,7) nanotubes. Futhermore, the spectral full-width at half-maximum of the photo-induced emission is reduced down to 8 nm with very good directivity at a wavelength of about 1.3 µm. Such results prove the great potential of carbon nanotubes for photonic applications.

Mots clés: Carbon nanotubes; Photoluminescence; optical microcavity

Domaines: Autre [cond-mat.other]; Optique [physics.optics]

Etienne Gaufrès, Nicolas Izard, Xavier Le Roux, Saïd Kazaoui, Delphine Marris-Morini, et al.. Optical microcavity with semiconducting single-wall carbon nanotubes. Optics Express, 2010, 18 (6), pp.5740-5745. ⟨10.1364/OE.18.005740⟩. ⟨hal-00529091⟩