Laser with continuous frequency tuning in the visible range, based on stimulated Raman scattering by polaritons

Continuous frequency tuning was demonstrated experimentally for a YAG : Nd³⁺ laser system with stimulated Raman scattering by polaritons and nonlinear frequency summation in LiIO₃ crystals. A theoretical description was developed for the tuning characteristics on the basis of a calculation of the dependence of the frequency of a polariton mode on its wave vector.