The Paleoproterozoic terrains of Kedougou Inlier have an overall architecture formed of greenstones and sedimentary basins. Most of the work done on these Birimian formations has focused on either belts or basins, or ...
This work was supported by the National Natural Science Foundation of China(Nos.12374401,12104271,and 61925508);the Natural Science Foundation of Shandong Province(Nos.ZR2021LLZ008 and ZR2021QA030);the China Postdoctoral Science Foundation(No.2021M691981).
To the best of our knowledge,this is the first time that a mid-infrared Er^(3+):CaF_(2)-SrF_(2) laser has achieved continuous-wave mode-locked operation by a semiconductor saturable absorber mirror.The laser emits a m...