发明名称 |
TRANSPARENT CERAMIC, METHOD FOR MANUFACTURING SAME, AND MAGNETO-OPTICAL DEVICE |
摘要 |
A transparent ceramic having terbium oxide (Tb2O3) in a molar ratio of at least 40%; and at least one oxide selected among an yttrium oxide, a scandium oxide, and a lanthanide rare earth oxide, wherein (1) the crystal structure of the terbium-oxide-based ceramic does not contain a non-cubic-crystal phase, (2) the mean crystal particle diameter is in a range of 0.5 to 100 mum, and (3) the ceramic comprises a sintering auxiliary having no incidence of deposition of a non-cubic-crystal phase in the crystal structure of the terbium-oxide-based ceramic. This transparent ceramic makes a magneto-optical element that performs at least as well as terbium gallium garnet or other existing monocrystal materials. It also makes a functional element for an optical isolator in the infrared region between 500 nm and 1.5 mum having very little scattering and very few birefringence components. |
申请公布号 |
US2014002900(A1) |
申请公布日期 |
2014.01.02 |
申请号 |
US201214005053 |
申请日期 |
2012.03.15 |
申请人 |
MAKIKAWA SHINJI;YAHAGI AKIRA;IKESUE AKIO;SHIN-ETSU CHEMICAL CO., LTD. |
发明人 |
MAKIKAWA SHINJI;YAHAGI AKIRA;IKESUE AKIO |
分类号 |
G02F1/09;C04B35/50 |
主分类号 |
G02F1/09 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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