The control of luminous radiation has extremely important implications for modern and future
technologies as well as in medicine. In this Review, we detail chemical structures and their …

We review nonlinear optical processes in various materials which can be utilized in passive
optical limiting devices. Specifically, the mechanisms of reverse saturable absorption, two …

Examining classic theories, experimental methods, and practical formulas for exploration of
the core topics in nonlinear optics, the second edition of this acclaimed text was extensively …

Two-photon absorption coefficients/32 of ten direct gap semiconductors with band-gap
energy Eg varying between 1. 4 and 3.7 eV were measured using 1.06 µm and 0.53 um …

We provide an in-depth treatment of the various mechanisms by which an incident light
beam can produce an intensity-or flux-dependent change in the refractive index and …

There is considerable interest in finding materials having large yet fast nonlinearities. This
interest, driven primarily by the search for materials for all-optical switching and sensor …

Nonlinear optics has been a rapidly growing field in recent decades. It is based on the study
of effects and phenomena related to the interaction of intense coherent light radiation with …

We present a detailed characterization of the output of passive semiconductor-based optical
limiters. These devices utilize two-photon absorption along with photogenerated carrier …

We report what is to our knowledge the first simultaneous measurement of the two-photon
absorption coefficient and the free-carrier cross section above the bandgap in a …

We have used two-photon absorption, self-defocusing, and optically-induced melting in
GaAs to limit 1 μm picosecond pulsed radiation. The contribution to the limiting action from …