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.
Cluzell
Benoit
B
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
Lalouat
Loic
L
Velha
Philippe
P
Picard
Emmanuel
E
Peyrade
David
D
Rodier
Jean-Claude
JC
Charvolin
Thomas
T
Lalanne
Philippe
P
de Fornel
Frédérique
F
Hadji
Emmanuel
E
D004867:Equipment Design; D019544:Equipment Failure Analysis; D036103:Nanotechnology / Q000295:instrumentation*; D055095:Optics and Photonics / Q000295:instrumentation*; D014159:Transducers