Abdel-Wahab, F.A. and Maksoud, H.A. 2021. The role of dysprosium ions as a dopant on linear and nonlinear optical dispersion parameters in a-Se thin film. Applied Chemical Engineering. 4, 1 (Jun. 2021), 23–32. DOI:https://doi.org/10.24294/ace.v4i1.802.