Zinc chalcogenide quantum dots (QDs) doped with paramagnetic transition metal ions (particularly ZnS:Mn QDs) are new attractive but rarely examined semiconductor nanocrystals that have excellent optical properties and enhanced thermal and environmental stability compared to Cd-based QDs. In this paper. we demonstrate a dye-based random laser (RL) with nonresonant feedback using ZnS:Mn... https://danddcollectiblers.shop/product-category/neurovascular-health/