| 发明名称 |
SINGLE CRYSTAL OF LITHIUM TANTALATE AND OPTICAL DEVICE USING IT |
| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an optical device which is highly efficient at a wavelength of about 300 nm, and a stable optical device using the above. SOLUTION: The lithium tantalate single crystal is grown in a melt which contains more Li than its proportional composition. Na content in the crystal is <=10 wt.ppm and the mole fraction of Li2O/(Ta2O5+Li2O) is 0.4900-0.5200.</p> |
| 申请公布号 |
JP2002167297(A) |
申请公布日期 |
2002.06.11 |
| 申请号 |
JP20000363531 |
申请日期 |
2000.11.29 |
| 申请人 |
HITACHI METALS LTD;NATIONAL INSTITUTE FOR MATERIALS SCIENCE |
发明人 |
MIYAMOTO AKIO;KITAMURA KENJI;FURUKAWA YASUNORI;TAKEGAWA SHUNJI |
| 分类号 |
G02F1/03;C30B29/30;G02B1/02;G02F1/355;G02F1/37;(IPC1-7):C30B29/30 |
主分类号 |
G02F1/03 |
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