Influence of perturbations on linear and nonlinear optical properties of quantum dot C. O. Edet, E. B. Al, F. Ungan, Etido P. Inyang, N. Ali, M. M. Ramli, R. Endut and S. A. Aljunid Eur. Phys. J. Plus, 138 10 (2023) 904 Published online: 10 October 2023 DOI: 10.1140/epjp/s13360-023-04519-8