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提拉法生长高质量氟化镁单晶 被引量:2

High-quality MgF_2 Single Crystal Grown by Czochralski Method
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摘要 设计了适合提拉法生长氟化镁单晶体的温场,采用提拉法成功生长出了直径100 mm的高质量氟化镁单晶。晶体内无气泡等宏观缺陷、无开裂;通过精密退火处理后,晶体透过率达到95%,平均应力双折射小于0.5 nm/cm。上述结果表明采用提拉法可以生长高质量的氟化镁单晶。 The compatible temperature field for MgF2 single crystal grown by Czochralski method was designed. The high-quality MgF2 single crystal with the diameter of 100 mm was successfully grown by this method. The single crystal shows no macroscopic defect or crack, and no bubble was found in the crystal. After artificial annealing, the transmittance of the crystal is as high as 95 % , and the stress birefringence is less than 0. 5 nm/cm. These results show that high-quality MgF2 single crystal can be grown by means of Czochralski method.
出处 《人工晶体学报》 CSCD 北大核心 2017年第11期2304-2305,共2页 Journal of Synthetic Crystals
关键词 氟化镁单晶 提拉法 透过率 应力双折射 MgF2 single crystal Czochralski method transmittance stress birefringence
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