釩酸釔(YVO4)

 


釩酸釔(YVO4)單晶是一種具有優良物理光學性能的雙折射晶體材料。該晶體透光范圍寬,透過率高、雙折射系數大、并易于加工。因此,YVO4晶體被廣泛應用于光纖通信領域,是光通信無源器件如光隔離器、旋光器、延遲器、偏振器中的關鍵材料。

Specifications:

Diameter:
Max 25m
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
400~5000nm
Crystal Symmetry
Zircon tetragonal, space group D4h
Crystal Cell
a=b=7.12 °, c=6.29 °
Density
4.22 g/cm2
Hygroscopic Susceptibility
Non-hygroscopic
Mohs Hardness
5 glass like
Thermal Optical Coefficient
Δna /dT=8.5x10-6 /K; dnc /dT=3.0x10-6 /K
Thermal Conductivity Coefficient
||C: 5.23 w/m/k; ⊥C:5.10w/m/k
Crystal Class
Positive uniaxial with no=na=nb, ne=nc
Refractive Indices,
no=1.9929, ne=2.2154, △n=0.2225, ρ=6.04°, at 630nm
Birefringence(△n=ne-no)
no=1.9500, ne=2.1554, △n=0.2054, ρ=5.72°, at 1300nm
and Walk-Off Angle at 45 deg(ρ)
no=1.9447, ne=2.1486, Dn=0.2039, ρ=5.69°, at 1550nm
Sellmeier Equation ( l in μm)
no2 =3.77834+0.069736/( λ2 -0.04724)-0.0108133 λ2
ne2 =4.5905+0.110534/( λ2 -0.04813)-0.0122676 λ2

 

Note: Kinds of sizes, cut angle, coating are available upon request.


   二八杠自行车改装电动车