Hussain N, Salim MR, Azmi AI, Mohd Noor MY, Abdullah AS, Ahmad F, et al. Performance of Graphene Nanopowder-Polyvinyl Alcohol in Optical Pulse Generation at 1.5 Micron Region. Photonics Lett. Pol. [Internet]. 2021 Sep. 30 [cited 2025 Feb. 23];13(3):55-7. Available from: http://m.photonics.pl/PLP/index.php/letters/article/view/13-19