Substrate interference and strain in the second harmonic generation from MoSe${}_2$ monolayers

S. Puri, S. Patel, J. L. Cabellos +4

Nonlinear optical materials of atomic thickness--such as non-centrosymmetric 2H transition metal dichalcogenide monolayers--have a second order nonlinear susceptibility (${\chi }^{(2)}$)…