Dopant concentration
|
20at% and 50 at%
|
Orientation
|
[100] within 5°
|
Wavefront Distortion
|
≤0.125 λ/inch(@1064nm)
|
Optical Quality
|
Interference fringes ≤ 0. 125 /inch
Extinction ration Ø3~Ø6.35 ≥ 28db, Ø7~Ø10 ≥ 25dB |
Size
|
Rods: Ø (3~10)mm×(30~180)mm (L)
Slabs: (3~12)mm×(6~24)mm×(60~180)mm (L) Upon request of customer |
Dimensional tolerances
|
Diameter: +0.00/-0.05mm
Length: ±0.5mm, chamfer : <0.15±0.05mm@45° |
Parallelism
|
≤10"
|
Perpendicularity
|
≤5′
|
Flatness
|
λ/10 @632.8nm
|
Surface Quality
|
10-5(MIL-O-13830A)
|
AR Coating Reflectivity
|
≤ 0.25% (@2940nm)
|
Damage threshold
|
≥ 500MW/cm2 10ns 1Hz at 1064nm
|
Crystal Structure
|
Cubic
|
Lattice Parameters
|
12.01 Å
|
Melting Point
|
1970℃
|
Moh Hardness
|
8.5
|
Density
|
4.56±0.04g/cm3
|
Specific Heat (0-20)
|
0.59J/g.cm3
|
Thermal Expansion Coefficient
|
[100]Direction:8.2×10-6/℃(0~250℃)
|
Thermal Conductivity
|
14W/m/K(@20℃)
|
10.5W/m/K(@100℃)
|
|
Laser Transition
|
4I11/2 to 4I13/2
|
Laser Wavelength
|
2940nm
|
Emission Cross Section
|
3×10-20 cm2
|
Index of Refraction
|
1.79 @2940nm
|