Crystal structure	Cubic
Density	4.5g/cm 3
Transmission Range	250-5000nm
Melting Point	1970°C
Specific Heat	0.59 W.s/g/K
Thermal Conductivity	14 W/m/K
Thermal Shock Resistance	790 W/m
Thermal Expansion	6.9×10 -6 /K
dn/dt, @633nm	7.3×10 -6 /K -1
Mohs Hardness	8.5
Refractive Index	1.8245 @0.8 m m, 1.8197 @1.0 m m, 1.8121 @1.4 m m

YAG镜片主要规格：

Orientation	[111] within 5°
Diameter	+/-0.1mm
Thickness	+/-0.2mm
Flatness	better than l /8@633nm
Parallelism	better than 30”
Perpendicularity	better than 5′
Scratch-Dig	10-5 per MIL-O-1383A
Wavefront Distortion	better than l /2 per inch@1064nm