• Crystal Structure: Tetragonal, a= 4.810 Å c=7.613 Å
• Melting point: 730 oC
• Density: 5.99 g / cc
• Hardness: 4.5 Mohs
• Photo-elastic Coeff. ( 632.8nm):
P11=0.074, P13= 0340, P31= 0.091, P33=0.240
• Refractive inde: ho =2.18 he = 2.32
• A-O Figure of Merit: M2 793 x 10-18 S3/g
• Transparency range: 350 ~ 500 nm
• Transitivity: > 70% at 632.8 nm
• Gradient of refractive index : < 5 x 10-5 /cm
• Phase velocity: 616 m/s
• Crystalgrowth method : CZ and Bridgman