Applied Physics Letters · 1996 · 35 citations · 0 references
Natural SciencesMaterials SciencePhysicsOptical MaterialsOpticsPhotonicsNonlinear OpticsOptical ModulationOptical Properties Of SolidsOptical SwitchingPhotochromic MaterialsRefractive IndexAll-optical SwitchingNonlinear Optical SwitchingOptical AbsorptionOptical BistabilityPhotoinduced AbsorptionPhotophysical MechanismsPhotophysical Rate ConstantsSaturation
In this letter, we demonstrate that the strong reverse saturation which has been observed at high intensity in a C60 solution, is also manifest at a low intensity. The behavior fits well to a rate equation model based on a six level system with known photophysical parameters. Furthermore, we demonstrate that it can be utilized to generate optical switching and bistability.