Hannover 2010 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 34: Ultrashort Laser Pulses: Applications II
Q 34.1: Vortrag
Mittwoch, 10. März 2010, 14:00–14:15, F 342
Ultimate fast optical switching of a photonic microcavity — •Georgios Ctistis1,3, Alex Hartsuiker1, Julien Claudon2, Jean-Michel Gérard2, and Willem L. Vos1,3 — 1Center for Nanophotonics, FOM Institute for Atomic and Molecular Physics (AMOLF), Amsterdam, Netherlands — 2CEA-CNRS Nanophysics and Semiconductors joint laboratory, Grenoble, France — 3Complex Photonic Systems (COPS), MESA+ Institute for Nanotechnology, University of Twente, Netherlands
Exciting prospects arise when photonic nanostructures are switched on ultrafast timescales. Of particular interest is the ultrafast switching of the resonance of a cavity wherein photons are stored for a long time in a tiny volume. Such switching permits the quantum electrodynamical manipulation of the stored photons, or the optical properties of a source embedded in the cavity. Here we have switched the resonance in the telecom range of an ultrafast (τcav=0.9 ps) cavity by the instantaneous electronic Kerr effect. Essential steps in our experiments are fabricating a dedicated cavity with a resonance in the telecom range and employing low-energy pump photons. This switching mechanism potentially allows beyond-THz modulation rates that could be of use for extremely fast datamodulation.