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 …

The optical limiting action of C 60 in toluene solution is mainly due to reverse saturable
absorption (RSA). It is shown that the formalism describing nonlinear optical response due …

We present an experimental study of strong self-focusing in nematic liquid crystals. In a
planar geometry, a linear dependence of the focal power on the input intensity for 100-μm …

The current rapid and complex advancement applications of electromagnetic (EM) and
optical systems calls for a much needed update on the computational methods currently in …

Nonlinear Optics probes in great depth quadratic and cubic nonlinearities, photorefractive
nonlinear optics, the nonlinear optical properties of nematic liquid crystals, and photonic …

A novel Z-scan theory based on the solution of the nonlinear paraxial wave equation,
completed by the Huygens–Fresnel principle is introduced. This theory is valid for the …

The light induced change of refraction is studied in pure and Mg doped LiNbO 3 with
congruent and stoichiometric compositions by the Z-scan method using all-lines visible …

The refractive and absorptive response of a nonlinear material can be assessed by the use
of a spatial scanning technique to characterize the material. This technique generally …

We review Z-scan and related techniques for the measurement of the nonlinear optical
properties of materials. The Z-scan is a simple technique for measuring the change in phase …

We reported the observation of the saturation of interband three-photon absorption (3PA) in
wide-gap semiconductors under intense femtosecond laser excitation. Theoretically, we …