A near-field actuated optical nanocavity

Benoit Cluzel (1) , Loïc Lalouat (1) , Philippe Velha (2, 3, 4) , Emmanuel Picard (5) , David Peyrade (3) , Jean-Claude Rodier (4) , Thomas Charvolin (5) , Philippe Lalanne (4) , Frédérique de Fornel (1) , Emmanuel Hadji (6)

1 ICB - Laboratoire Interdisciplinaire Carnot de Bourgogne
2 INAC - Institut Nanosciences et Cryogénie
3 LTM - Laboratoire des technologies de la microélectronique
4 Laboratoire Charles Fabry de l'Institut d'Optique / Naphel
5 DRFMC - Département de Recherche Fondamentale sur la Matière Condensée
6 SP2M - UMR 9002 - Service de Physique des Matériaux et Microstructures

We demonstrate here that switching and tuning of a nanocavity resonance can be achieved by approaching a sub-micrometer tip inside its evanescent near-field. The resonance energy is tuned over a wide spectral range (/~10-3) without significant deterioration of the cavity peaktransmittance and of the resonance linewidth. Such a result is achieved by taking benefits from a weak tip-cavity interaction regime in which the tip behaves as a pure optical path length modulator

Domaines: Optique / photonique; Optique [physics.optics]

Benoit Cluzel, Loïc Lalouat, Philippe Velha, Emmanuel Picard, David Peyrade, et al.. A near-field actuated optical nanocavity. Optics Express, 2008, 16 (1), pp.279-286. ⟨hal-00669767⟩