Microcavity-coupled optical Stark effect: Application to ultrafast all-optical modulation

Sanchez, S.; De Matos, C.; Pugnet, M.
January 2004
Applied Physics Letters;1/12/2004, Vol. 84 Issue 2, p191
Academic Journal
We propose a modeling of the microcavity-coupled optical Stark effect that we compare to degenerate pump-probe experimental results obtained at room temperature on a bulk GaAs microcavity. The cavity energy mode is adjusted 15 meV below the edge of the GaAs bandgap. With a pump intensity as low as 0.4 MW/cm2, we could demonstrate an instantaneous reflectivity modulation with a 5:1 contrast ratio. The good agreement between experiment and modeling is promising to design structures well suited to all-optical modulation with low switching intensities. © 2004 American Institute of Physics.


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