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Calculating steady-state optical limiting characteristics of nonlinear Fabry-Perot resonators, we noticed that the input-output characteristic shape does not depend on any resonator parameter. The intracavity medium was assumed to have either third-order nonlinear refraction or absorption. In a double logarithmic diagram the input-output characteristic can be divided into two regions, linear and nonlinear,...
Multilayer structures which can be considered as one-dimensional photonic crystals are very promising in the context of low-threshold nonlinear optical devices. That generally takes place by the two reasons: local multiple enhancing of optical field in crystal defects and sharp spectral characteristics of such structures. Multilayer Fabry-Perot resonators have been theoretically and experimentally...
Refraction and absorption indices dependencies on the optical field intensity for deposited thin films of certain semiconductors and some other materials in the near-infrared range have been experimentally obtained by using Z-scan technique. Multilayer structures containing such films with high nonlinear coefficients as one or several constituent layers are very promising in the context of low-threshold...
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