… check, validating the nonlinear refraction results, as both … the 2PA cross section, the nonlinear
refraction cross section, δ R , … , considering the magnitude of the nonlinear refractive index …

… , contributions of the various mechanisms depend on the … –2 cm/GW, 2 orders of magnitude
smaller than the values of n 2 … third-order nonlinearity, the quintic nonlinearity also plays an …

… includes many competing mechanisms that require further … the theory, PbS QDs’ nonlinear
refractive index (or their second … ways to increase the magnitude of QDs’ nonlinear response. …

… (3 PA) are the commonly reported mechanisms of the nonlinear absorption in this … The
nonlinear refractive response of this molecule increases by approximately one order of magnitude …

… MAPbI 3 , the nonlinear absorption coefficient increased from (0.7–0.9) × 10 4 to (2.5–4.3)
× 10 4 cm/GW and the nonlinear refraction coefficient increased in magnitude from −(0.4–0.6) …

… to β < 10 −7 cm W −1 , ie, three orders of magnitude less than the SA-related absorption. …
Probably, the prevalence of molecular nonlinearities related with reorientational mechanisms, …

… Both the two-photon absorption and nonlinear refraction were … The mechanism for NLO
improvement in CdS was mainly … -scan method, from which the magnitudes and signs of samples' …

… absorption mechanism observed in disperse blue 14 dye molecules. The primary condition
for the occurrence of RSA in molecules is that the magnitude of ground state absorption cross…

… The nonlinear absorption mechanism should be … of magnitude less than those critical
intensities, denoting that the third-order Kerr effect is always the predominant nonlinear refraction …

… The ultrafast nonlinear absorption and refraction at various wavelengths are systematically
studied. The magnitudes of NLA & NLR are estimated and the ultrafast mechanisms of NLA & …