SPONTANEOUS PARAMETRIC SCATTERING OF LIGHT IN LiIO3

Abstract
Cw spontaneous parametric scattering in LiIO3 has been observed. The results show that the nonlinear coefficient d31 for LiIO3 is ∼18×10−9 esu. The ordinary index of refraction curve for this crystal has also been determined from 1.2μ past the ir‐absorption edge at 5.4μ to near 7μ; no resonance in the nonlinear susceptibility was found near this particular absorption band.