%A Ke-Lun Xia(夏克伦), Guang Jia(贾光), Hao-Tian Gan(甘浩天), Yi-Ming Gui(桂一鸣), Xu-Sheng Zhang(张徐生), Zi-Jun Liu(刘自军), and Xiang Shen(沈祥) %T Ultrabroadband mid-infrared emission from Cr2+:ZnSe-doped chalcogenide glasses prepared via hot uniaxial pressing and melt-quenching %0 Journal Article %D 2021 %J Chin. Phys. B %R 10.1088/1674-1056/ac11eb %P 94208-094208 %V 30 %N 9 %U {https://cpb.iphy.ac.cn/CN/abstract/article_123907.shtml} %8 2021-08-19 %X We reported an ultrabroadband mid-infrared (MIR) emission in the range of 1800 nm-3100 nm at room temperature (RT) from a Cr2+:ZnSe-doped chalcogenide glasses (ChGs) and studied the emission-dependent properties on the doping methods. A series of Cr2+:ZnSe/As40S57Se3 (in unit wt.%) glass-ceramics were prepared by hot uniaxial pressing (HUP) and melt-quenching methods, respectively. The glass-ceramics with MIR emission bands greater than 1000 nm were successfully prepared by both methods. The effects of matrix glass composition and grain doping concentration on the optical properties of the samples were studied. The occurrence state, morphology of the grains, and the microscopic elemental distributions were characterized using x-ray diffraction (XRD), scanning electron microscope (SEM), and energy dispersive spectrometer (EDS) analyses.