Rutile ( TiO2) single crystal is one of the most suitable materials used for spectral prisms and polarizing devices such as optical isolators and beam displacers because it has a large birefringence with a high refractive index. Compared to YVO4, TiO2 crystal is more chemically and physically stable. Our high-quality TiO2 (rutile) single crystal is grown by the floating zone method and is an excellent choice to be used as optical components and epi thin-film substrates.
|
Crystal |
Birefringence D=he-ho |
Refractive index h at l= 0.63m |
Thermo optical Coef.dh/dT 106/K |
Structure lattice constant (A) |
Melting point oC |
Density g/cm3 |
Hard-ness (Moh) |
Thermal Coef. 10-6/K |
|
YVO4 |
+ 0.222 |
ho=1.9929 |
a: -8.5 |
Tetragonal |
1825 |
4.22 |
5 |
a: 4.46 |
|
TiO2 |
+ 0.282 |
ho=2.583 |
a: -0.72 |
Tetragonal a=4.593 c=2.958 |
1840 |
4.26 |
7 |
a: 7.14 |
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