Gz. Zhao et Sh. Pan, DISPERSIVE OPTICAL BISTABILITY OF SEMICONDUCTOR SUPERLATTICES IN MIDINFRARED REGION, Solid state communications, 99(8), 1996, pp. 595-600
The characteristics of optical bistability (OB) induced by intersubban
d transitions (ISBTs) in semiconductor superlattices (SLs) are studied
by means of the density matrix method. It is shown that the ISBT-indu
ced OB can be realized in a wide frequency range, and its hysteresis l
oop is much larger than that of a two-level system. These behaviors of
the ISTB-induced OB are intimately related to the electron tunneling
effects in SLs. Copyright (C) 1996 Elsevier Science Ltd