Study on High Quality Sapphire Crystals by Kyropulos Method

A high quality sapphire crystal oriented along was grown by Kyropulos method.The dislocations density of the sapphire crystal is about 2×103-1.3×104 /cm2.And with the help of LA-ICP-MS,a precise measurement about sapphire crystal impurities was carried out and the data was analyzed.The transmission spectra tested from 600 nm to 1200 nm the transmission of sapphire crystal is above 80 percent,while from 1200 nm to 3000 nm it is above 85 percent.The high quality sapphire crystals grown by Kyropulos method have been utilized in some commercial products and show good performance.