MULTISTABLE LOCALIZED STRUCTURES AND SUPERLATTICES IN SEMICONDUCTOR OPTICAL RESONATORS

We report on the existence of various periodic transverse patterns and stable localized structures in the optical field of a planar resonato r, which exhibits the defocusing saturable nonlinearity of a semicondu ctor near the band edge. We predict multistability of all feasible pat terns as well as of the localized states. Being equal as well as diffe rent, stable localized states can organize as clusters or new kinds of periodic patterns (superlattices). The interaction of localized stale s via their oscillating tails allows the formation of patterns with th e same basic units but with different lattice spacing. [S1050-2947(97) 50511-7].