A near-field actuated optical nanocavity.
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 (Deltalambda/lambda~10(-3)) without significant deterioration of the cavity peak-transmittance 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.
Département de Recherche Fondamentale sur la Matière Condensée, Commissariat à l'Energie Atomique, 17 ruedes Martyrs, F-38054 GRENOBLE Cedex 9, France. benoit.cluzel@u-bourgogne.fr
Benoit
B
Cluzell
Loic
L
Lalouat
Philippe
P
Velha
Emmanuel
E
Picard
David
D
Peyrade
Jean-Claude
JC
Rodier
Thomas
T
Charvolin
Philippe
P
Lalanne
Frédérique
F
de Fornel
Emmanuel
E
Hadji
D004867:Equipment Design; D019544:Equipment Failure Analysis; D036103:Nanotechnology / Q000295:instrumentation*; D055095:Optics and Photonics / Q000295:instrumentation*; D014159:Transducers