We present a detailed theoretical investigation on the Gaussian beam Z scan for arbitrary
aperture and arbitrary nonlinear refraction phase shifts, based on the Gaussian …

In this work, a novel method for analyzing open Z-scan experiments is presented. It is based
on the calculation of the nonlinear absorption parameter q directly from the transmittance …

In this paper the response purely refractive of a thin nonlinear material, in the z-scan
technique experiment, is modeled as a lens with a focal length that is a function of some …

We present a theory of open‐and closed‐aperture Gaussian beam Z‐scan for nonlinear
optical materials with saturable absorption and high‐order nonlinear refraction. We show …

We characterize the nonlinear optical properties of indium–tin oxide (ITO) quantum dots
(QDs) in the IR range using the Z-scan method. We present results of three-photon …

We report the spectral dependence of the nonlinear refractive index (γ) of carbon disulfide
(CS_2) in the range of 400–1100 nm in the case of the femtosecond laser pulses. The …

Since the introduction of the Z-scan, which is widely used to measure the nonlinear optical
properties of material. The result of measurement mainly depends on light through the …

We report in this work on the simultaneous presence of both positive and negative nonlinear
optical (NLO) refractive indexes measured in methyl-red dye doped 5CB liquid crystal (LC) …

Analytical solutions are derived using a straightforward mathematical treatment that
accurately describes the power of a TEM_00 Gaussian beam transmitted through or around …

Saturable Kerr nonlinearity is theoretically investigated by use of the top-hat beam Z-scan
technique. The saturation intensity changes the nonlinear refractive profile and decreases …