Phys Rev E Stat Nonlin Soft Matter Phys
December 2002
We study the transverse nonlinear dynamics of bulk and multi-quantum well AlGaAs microresonators, in the mixed dispersive and saturable absorptive regime, slightly below the band-gap edge energy. With a Gaussian beam excitation we observe strongly localized states of various shapes, bright or dark in reflection. Their dynamics appears to be ruled by strong thermally induced nonlinear mechanisms, acting as a dressing mechanism for electronic nonlinearities.
View Article and Find Full Text PDFWe have observed optical patterns in GaAs/GaAlAs vertical-cavity microresonators. Rolls, rhombs, or hexagons were obtained depending on the wavelength detuning. We show that cavity thickness fluctuations contribute to pattern selection.
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