TRONCIU, V. Z.; ROTARU, A. H.
(WILEY-VCH Verlag Berlin GmbH, Fed. Rep. of Germany, 1999)
The theory of dynamic optical bistability and self-pulsations in condensed media is elaborated. The nonlinearity is due to a process in which two excitons are bound into a biexciton by virtue of their Coulomb interaction. ...