Hyper-Raman scattering by polaritons in a centrally symmetric SrTiO3 crystal
Denisov V.N. , Mavrin B.N. , Podobedov V.B., Sterin Kh.E.
The first observation of polaritons in the hyper-Raman scattering is reported. The lower and upper branches of the polaritons in a centrally symmetric SrTi03 crystal are investigated.