Abstract
The Z-scan technique [1] is an extensively utilized experimental technique for studying optical nonlinearities in a wide class of photorefractive media. The results of interpretation of Z-scans lead, at least sometimes, to conclusions of non-acceptably large uncertainties in estimation of the Δn0 and n2 indices. This vagueness is observed, for example, in nonlinear materials exhibiting strong absorption saturation, which can considerably distort the ordinary Z-scan transmittance curves owing to deviations of the radial refractive index profile Δn(r) from the Gaussian one. Consequently, simple formulas [1] do not work in such circumstances; otherwise, significant discrepancy between the actual and the calculated values for Δn0 arises.
© 2000 IEEE
PDF ArticleMore Like This
P. A. Márquez Aguilar, J. J. Sánchez Mondragón, S. Stepanov, and V. Vysloukh
QThH5 Quantum Electronics and Laser Science Conference (CLEO:FS) 1996
R.E. de Araujo, A S. L. Gomes, and Cid B de Araújo
CWF6 The European Conference on Lasers and Electro-Optics (CLEO/Europe) 2000
Albert Kamanzi, Maryam Hatamimoslehabadi, and Chandra S Yelleswarapu
OW3D.1 Optical Molecular Probes, Imaging and Drug Delivery (OMP) 2015