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In recent years, a significant amount of attention has been drawn towards all-optical semiconductor switching. To that respect, exploitation of light localization, in slow light photonic crystal waveguides (PCWs) or in microcavities, is of considerable interest because it enables enhancement of optical nonlinearities. Recently, we observed experimental and theoretical enhancement of optical Kerr effect,...
We show that giant polarization rotations and ellipticity changes can be photo-induced in semiconductor microcavities at room temperature. This sensitive (few muJ/cm2) polarization technique could be useful for high contrast parallel optical signal processing
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