Structural and Physical Properties: |
|
Crystal structure |
Orthorhombic, space group Pna2 1,point group mm 2 |
Cell parameters |
a ＝ 12.814 ? b ＝ 6.404 ? c ＝ 10.616 ? z ＝ 8 |
Melting point |
1172 ℃ incongruent |
Curie point |
936 ℃ |
Mohs hardness |
≈ 5 |
Density |
2.945g /cm 3 |
Specific heat |
0.1737cal/g.k |
Thermal conductivity |
0.13w/cm.k |
Optical properties: |
|
Transmitting range |
350nm — 4500nm |
Refractive indices |
|
n x |
n y |
n z |
1064nm |
1.7377 |
1.7453 |
1.8297 |
532nm |
1.7780 |
1.7886 |
1.8887 |
|
Therm-optic coefficients |
dn x /dT ＝ 1.1 × 10-5/ ℃ dn y /dT ＝ 1.3 × 10-5/ ℃
dn z /dT ＝ 1.6 × 10-5/ ℃ |
Sellmeier equations |
α＜ 0.1 ％ /cm @1064nm ＜ 1 ％ /cm @532nm |
Nonlinear properties: |
|
Phase matchable SHG range |
497-1800nm |
Nonlinear optical coefficients |
d 31 ＝ 6.5pm/v, d 32 ＝ 5pm/v, d 33 ＝ 13.7pm/v, d 24 ＝ 7.6pm/v,
d 15 ＝ 6.1pm/v, |
Temperature acceptance |
25 ℃ -cm |
Spectral acceptance |
5.6A -cm |
Optical damage threshold |
＞ 450mw/cm 2 (@1064nm 10ns 10Hz) |
warranty: |
Strict quality control
Unbeatable price and quantity discount
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Free technical support |
Standard specifications |
|
Dimension tolerance |
（ w ± 0.1mm ）×（ H ± 0.1mm ）×（ L ± 0.2mm / ） |
Clear aperture |
＞ 90 ％ |
Transmitting wavefront distortion |
less than λ /8 @633nm |
Flatness |
λ /8@633nm |
Scratch/Dig code |
10-5 （参照标准 MIL-o-13830B ） |
Parallelism |
≤ 20 ″ |
Perpendicularity |
5 ′ |
Angle tolerance |
Δθ＜ 0.2 ° Δφ＜ 0.2 ° |
Coating |
AR:R1064<0.1% R532<0.5% |
