Second harmonic generation in liquid crystals; symmetry of molecules and macroscopic nonlinearity
Arakelyan S.M., Grigoryan G.L., Nersisyan S.Ts., Nshanyan M.A., Chilingaryan Yu.S.
Second-harmonic generation was experimentally registered in a nematic liquid crystal in both synchronous and non-synchronouns interactions, and the components of the nonlinear susceptibility tensor were measured for the first time.