par Tassin, Philippe;Van Der Sande, Guy ;Veretenov, Nikolay ;Kockaert, Pascal ;Veretennicoff, Irina;Tlidi, Mustapha
Référence Optics Express, 14, page (9338-9343)
Publication Publié, 2006
Référence Optics Express, 14, page (9338-9343)
Publication Publié, 2006
Article révisé par les pairs
Résumé : | We study the coupling between negative diffraction and direct dispersion in a nonlinear ring cavity containing slabs of Kerr nonlinear right-handed and left-handed materials. Within the mean field approximation, we show that a portion of the homogeneous response curve is affected by a three-dimensional modulational instability. We show numerically that the light distribution evolves through a sequence of three-dimensional dissipative structures with different lattice symmetry. These structures are unstable with respect to the upswitching process, leading to a premature transition to the upper branch in the homogeneous hysteresis cycle. |