A new type of optical bistability mediated by pho~ion and virtual exciton coupling is suggested for polymers. Numerical results with parameters pertaining to polydiacetylene-toluene-sulfonate are given as an illustration. The stability of the steady-state solution is examined, and the physical mechanism responsible for the bistability is discussed. 1988 PACS numbers. 42.65.-k, 42.65.pc, 36.20.-...

We have experimentally investigated dynamical hysteresis behavior by changing the sweeping frequency of the cavity input field in the optical bistability of rubidium atoms (in a three-level atomic-type configuration) inside an optical cavity. The shape, width (or area), and direction of the hysteresis cycle are sensitive functions of the sweeping frequency for such an optical bistable system.

We theoretically investigate optical bistability, mechanically induced absorption (MIA) and Fano resonance of a hybrid system comprising single quantum dot (QD) embedded in solid-state microcavity interacting with the quantized cavity mode deformation potential associated lattice vibration. find that bistability can be tuned by QD-cavity coupling. further show normalized power transmission disp...

We propose a scheme to obtain tunable low-threshold optical bistability of reflected beams in Tamm plasmon superlattices (TPS). The is triggered due the strong third-order non-linearity graphene and local field enhancement TPS. Our results show that have ability lower bistable threshold even further than single state. hysteresis behavior can be continuously adjusted by changing applied voltage ...

We propose a new type of bistable device for silicon photonics, using the self-electro-optic effect within an optical cavity. Since the bistability does not depend on the intrinsic optical nonlinearity of the material, but is instead engineered by means of optoelectronic feedback, it appears at low optical powers. This bistable device satisfies all the basic criteria required in an optical swit...

We analyze theoretically the nonlinear phenomenon of optical bistability inside a ring resonator formed with a silicon-waveguide nanowire and derive an exact parametric relation connecting the output intensity to the input intensity. Our input-output relation accounts for linear losses, the Kerr nonlinearity, two-photon absorption, free-carrier-induced absorption and dispersion, and thermo-opti...