【摘要】 用不同方法研究了生长晶体过程中得到的失透样品、透明晶体样品以及透明晶体中的夹杂物.研制出无散射中心的激光棒,其光学均匀性为0.25λ/时,激光阈值34j,色心晶体调Q后线宽为0.01(?).更多还原

【Abstract】 The opaque sample and transparent alexandrite crystals have been analysed by different techniques such as fluorospectrometer, X-ray fluorospeotrometer, ESCA. The measured date support our previous suggestion about the formation mechanism of the ’melt aging’ named by Lienard. Then transparent crystal can be grown with good reproducibility.Inolusions and dislocations in the crystals have also been investigated. Since then high quality alexandrite crystals have been grown. The optical homogeneity of laser rods is 0.25λ/in. to 0.40λ/in and free from scattering centers. Laser threshold is34.1J. Line width is 0.01 A after Q-switch with a color center crystal.Annealing effect pressure effect of R1 and R2 fluoroline and striations in alexandrite crystals have also studied.更多还原