S. N. Mohd Halim, H. H. J. Sapingi, M. F. Mohamad Taib, and F. Ahmad, “Graphene-Molybdenum Disulphide Chitin Nanocomposite Based Passive Q-switcher”, Photonics Lett. Pol., vol. 14, no. 1, pp. 7–9, Mar. 2022.