Optical Properties for Thin Film of Coumarin 334 Organic Laser Dye doped with PVA Polymer and Al2O3 Nanoparticles. JUBPAS [Internet]. 2023 Sep. 30 [cited 2025 May 22];31(3):201-9. Available from: https://www.journalofbabylon.com/index.php/JUBPAS/article/view/4840