Details

Autor(en) / Beteiligte

• Paparone, J
• Laverdant, J
• Brucoli, G
• Symonds, C
• Crut, A
• Del Fatti, N
• Benoit, J M
• Bellessa, J

Titel

Vertical pillar nanoantenna for emission enhancement and redirection

Ist Teil von

• Journal of physics. D, Applied physics, 2018-01, Vol.51 (4), p.45301

Ort / Verlag

IOP Publishing

Erscheinungsjahr

2018

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Designing efficient metallic nanostructures can help in realizing bright single photon emission in the visible and near-infrared ranges. We propose a novel nanostructure design that combines the benefits of plasmonic hot spot generation in the near-field and the concept of antennas developed in the radio-frequency range. The antenna is formed by a vertical stack of metallic and dielectric nanocylinders. When used for controlling the far-field emission of a localized source, its key features are moderate losses in the metal, relatively large Purcell factors, as well as a low sensibility to the lateral position of the emitter. A redirection process necessary for these vertical structures is proposed, based on the versatility of the vertical geometry, and allows an efficient redirection of the emitted light even for antennas on dielectric substrates.