LASER MEDIUM WITH OPTICAL AMPLIFICATION ACTION USING OPTICAL TRANSITION OF Eu IN MIXED CRYSTAL COMPOUND AND LASER USING THAT MEDIUM

摘要

PROBLEM TO BE SOLVED: To provide a laser medium with optical amplification action using the optical transition of Eu in a mixed crystal compound and to provide a laser using that medium.;SOLUTION: The laser medium with optical amplification action uses the optical transition of Eu in the mixed crystal compound expressed by the chemical formula M_1-xEu_xGa₂S₄ (where M is one or more of Ca, Sr, Ba, and 0.01≤x1). The laser medium with optical amplification action uses the optical transition of Ce, Eu having the structure wherein thiogallate compound with Ce added to it and above-mentioned M_1-xEu_xGa₂S₄ mixed crystal compound are separately formed in the same crystal. The laser medium with optical amplification action uses the optical transition of Ce and Eu having the structure wherein both of thiogallate compound with Ce added to it and above-mentioned M_1-xEu_xGa₂S₄ mixed crystal compound are combined. The laser uses these laser media.;COPYRIGHT: (C)2005,JPO&NCIPI