Terahertz induced optical second harmonic generation from dielectric interfaces: mechanism and applicationS.B. Bodrov, Yu.A. Sergeev, A.I. Korytin, M.Y. Emelin, M.Y. Ryabikin and A.N. StepanovEPJ Web Conf., 195 (2018) 06002DOI: https://doi.org/10.1051/epjconf/201819506002