1.
Phys Rev E Stat Nonlin Soft Matter Phys
; 66(6 Pt 2): 066613, 2002 Dec.
Artigo
em Inglês
| MEDLINE
| ID: mdl-12513435
RESUMO
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. Precursor forms of cavity solitons are also identified.