Scrutinizing the third-order nonlinear optical activity of organometallic tetra-aqua-copper (II) hydrogen maleate single crystal for laser safety device application. - Mol, Y. K. Pratheesha; Vinu, S.; Gopakumar, S. Keerthi; Sindhusha, S.; Christy, R. Sheela; Vinitha, G. (Journal of Materials Science: Materials in Electronics, 2024)