|
|
Birefringent Crystals
YVO4
Capabileties:
1) Diameter : max. 25mm
2) Length: max. 30mm
3) Surface Quality: better than 2 0/10 scratch/dig Per MIL-0-13830A
4) Beam Deviation: <3 arc min
5) Optical Axis Orientation: +/-0.2°
6) Flatness: < l /4 @633nm
7) Transimission Wavfront Distortion: < l /2 @633nm
8) Coating: upon customer's Specification
| Physical and Optical Properties
|
| Transparency Range |
400~5000nm |
| Crystal Symmetry |
Zircon tetragonal, space group D4h |
| Crystal Cell |
A=b=7.12 Å c=6.29 Å |
| Density |
4.22 g/cm 2 |
| Hygroscopic Susceptibility |
Non-hygroscopic |
| Mohs Hardness |
5 glass like |
| Thermal Optical Coefficient |
Dn a /dT=8.5x10 -6 /K; dn c /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, Birefringence( Δn=ne-no)
and Walk-Off Angle at 45 deg(ρ) |
No=1.9929, ne=2.2154, Δn=0.2225, ρ=6.04°
at 630nm
No=1.9500, ne=2.1554, Δn=0.2054, ρ=5.72° at 1300nm
No=1.9447, ne=2.1486, Δn=0.2039, ρ=5.69° at 1550nm
|
| Sellmeier Equation ( l in m m) |
n o 2 =3.77834+0.069736/( l 2 -0.04724)-0.0108133
l 2 n e 2 =24.5905+0.110534/( l 2 -0.04813)-0.0122676 l 2 |
Note:Please click here for more detail about YVO4
Polarizers.
|
