It is shown that two-step, two-wave mixing makes a substantial contribution to the total three-wave mixing process in a noncentrosymmetric crystal. The efficiency of generating 2ω₁-ω₂ was observed as a function of the difference frequency ω₁-ω₂, the electric polarization vector, and the propagation direction. This method allowed the determination of the true third-order susceptibility χ⁽³⁾, in both sign and magnitude, in terms of [χ⁽²⁾]².
No takes yet. Share an insight, caveat, or question.
Yablonovitch et al. (1972) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: