Synthesis, characterization and exploration of optical non-linearity of secondary ketamine derivatives via DFT study - Khalid, Muhammad; Jawaria, Rifat; Ditta, Shahbaz Allah; Shafq, Iqra; Braga, Ataualpa Albert Carmo; Alshehri, Saad M; Asghar, Muhammad Adnan (Optical and Quantum Electronics, 2023)