This method of manufacturing a phosphor and laser devices using the same transition metal doped MgAl2O4 spinel type phosphor

摘要

A laser apparatus using the transition metal doped spinel type MgAl ₂ O ₄ phosphor capable of laser oscillation, a few percent at a molar ratio of the amount of Mg relative to the amount of Al raw material of Al in the Al source is obtained by a single crystal by the floating zone melting in the atmosphere gas to a predetermined feed rod of mixing the Mg raw material amount is excessive, and a transition metal source, were formed by compression molding the mixed raw material. In 2-x _Ti x _{O 4} composition formula _MgAl, in the range of 0.003 ≦ x ≦ 0.01, the amount of Mn-doped, the amount of Ti-doped In _1-x Mn _x AlO ₄ composition formula _Mg, it is in the range of 0.003 ≦ x ≦ 0.01.