Salih, Abdul-Kareem Mahdi. “Numerical Analysis of Molecules Intersystem Crossing Effect on a Passively Q- Switched Laser Pulse Characteristics”. Iraqi Journal of Physics 10, no. 17 (October 16, 2021): 1–6. Accessed March 30, 2025. https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/764.