- 首頁
- 產(chǎn)品
- 偏硼酸鋇(α-BBO)
偏硼酸鋇(α-BBO)
偏硼酸鋇(α-BBO)晶體是一種優(yōu)異的雙折射材料，具有非常良好的光學性能，在紫外到中紅外都具有很好的透過。α-BBO晶體內(nèi)部質(zhì)量良好，吸收小，并且由于具有良好的紫外透過，被廣泛應用于高消光比、深紫外激光系統(tǒng)中,主要加工成格蘭偏振棱鏡和偏振分束器、補償器等等..
應用：格蘭棱鏡、偏振分束器、補償器等等..
Specifications:
|
Diameter:
|
Max 50m
|
|
Length:
|
Max 35mm
|
|
Surface Quality:
|
better than 20/10 scratch/dig
|
|
Beam Deviation:
|
< 3 arc min
|
|
Optical Axis Orientation:
|
+/-0.2deg
|
|
Flatness:
|
< λ/4 @632.8nm
|
|
Wavefront Distortion:
|
< λ/2 @632.8nm
|
|
Coating:
|
Coating upon Request
|
Properties:
|
Transmitting range
|
189nm~3500nm
|
|
Density
|
3.85g/cm3
|
|
Therm-Optic Coefficients
|
dno/dT=-9.3 x 10-6/ °C
dno/dT=-16.6x10-6/ °C |
|
Optical Homogeneity
|
Δn≈10-6/cm
|
|
Mohs Hardness
|
4.5
|
|
Damage Threshold
|
1GW/cm2 at 1064nm
500MW/cm2 at 532nm |
|
Hygroscopic Susceptibility
|
Low
|
|
Thermal Expansion Coefficients
|
αa=4x10-6
|
|
(25 °C - 900 °C)
|
αa=4x10-6
|
|
Linear Absorption Coefficients
|
a<0.005cm-1 from 300nm to 2300nm
|
|
Refractive Indices,
Birefringence(△n=ne-no) and wal-off Angle at 45 °C(ρ) |
ne=1.58462,no=1.65790,?n=-0.073282;ρ=-4.9532° at 1064nm
ne=1.60206,no=1.67755,?n=-0.075491;ρ=-5.0407° at 532nm ne=1.67190,no=1.76171,?n=-0.089805;ρ=-5.6926° at 266nm |
|
Sellmeier equation(l in μm)
|
no2=2.7471+0.01878/( λ2-0.01822)-0.01354 λ2
ne2=2.37153+0.01224/( λ2-0.01667)-0.01516 λ2 |
Note: Kinds of sizes, cut angle, coating are available upon request.
