Photon confinement in wavelength-scale optical resonators deeply modifies light-matter interaction processes such as absorption or spontaneous emission taking place inside the cavity. Here we show that optical resonances also modify higher order processes, namely Raman scattering by phonons in planar semiconductor microcavities. Depending on the experimental configurations, ingoing and outgoing photons can be independently or simultaneously tuned to the photonic quantized levels of the cavity, leading to largely adjustable enhancement of the external cross section and directionality of the light scattering process. Up to five orders of magnitude enhancement can be achieved in the double optical resonance (DOR) configuration.1

© 1997 Optical Society of America

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