Cr:YAG sintered body and production method thereof

摘要

A Cr:YAG sintered body including Al, Y, Cr, Ca, Mg, Si, and O, and component contents in the sintered body satisfying conditional expressions of 1) to 3) below, provided in the Conditional expression, each chemical symbol represents a component content (atppm).|(Y+Ca)/(Al+Cr+Si+Mg)−0.6|<0.001;  1)0≤(Ca+Mg)−(Cr+Si)≤50 atppm; and  2)50≤Si≤500 atppm  3);The embodiment of the present invention is to provide a Cr:YAG sintered body which exhibits high transparency and has a high Cr4+ conversion ratio, and its production method.