Fabrication and characterization of mid-infrared emission of Pr three+ doped selenide chalcogenide Eyeglasses and fibresTuning the magnetic Homes of doped ZnS applying transition metallic doping: A multi-scale computational approachPassive Q-switching of an Er-fiber-Er:YAG hybrid laser was realized by Co:ZnS and Cr:ZnSe saturable absorbers enabling