| 摘要 |
PROBLEM TO BE SOLVED: To provide a transparent magnetic optical material without absorbing a fiber laser light with wavelength range of 0.9 to 1.1 μm, therefor suppressing generation of heat lens, having larger Verdet constant than a TGG crystal or a TSAG crystal and suitable for constructing a magnetic optical device such as an optical isolator.SOLUTION: It consists of transparent ceramic containing composite oxide represented by the following formula (1) as a main component and a single crystal of the composite oxide represented by the following formula (1). TbRO(1), where 1<x<1.3, R is at least one element selected from a group consisting of silicon, germanium, titanium, tantalum, tin, hafnium and zirconium, excluding as a single element for silicon, germanium and tantalum.SELECTED DRAWING: Figure 1 |
