TiO2 Substrate
Rutile (TiO2) crystal has large birefringence and refractive index, is an ideal material for spectral prisms and polarization devices (e. g., optical isolators and beam splitter). Rutile (TiO2) crystal has better physicochemical stability than YVO4.
OST Photonics offers high quality TiO2 substrates for researchers and industries. Crystal orientation, size and thickness can be customized according to your requirements.
Features
Large birefringence and refractive index
Good physical and chemical stability
Applications
Spectral prisms
Optical isolators
Beam splitter
Processing Capability
Orientation: <100>,<110>,<001>,<111>, etc.
Dimension: 5x5mm, 10x5mm, 10x10mm, 15x15mm, etc.
Thickness: 0.5mm, 1.0mm, etc.
Available items: substrates, blanks and customized optics
Specification and Properties of TiO2 Substrates
Crystal System | Tetragonal |
Growth Method | Flame; Float-zone |
Crystal Lattice Constant | a=4.5936 Å c=2.9582 Å |
Density | 4.26 g/cm3 |
Hardness | 7 Mohs |
Thermal Capacity | 0.17 (25 ℃) |
Transmitting Range | 0.5-4.5 μm |
Refractive Index | no=2.47 ne=2.73 at 1.3 um |
Dielectric Constant | ~180//<001>; ~90⊥<001> |
Thermo-optical Coeffecient (dη/dT) | a: -0.72×10^ 6 /K; c: -0.42×10^-6 /K |
Thermal Expansion Coefficient | a: 7.14×10^-6 /K; c: 9.19×10^-6 /K |
Orientation | <100>,<110>,<001>,<111>, etc. |
Orientation Tolerance | ±0.5° or better |
Dimension | 5x5mm, 10x5mm, 10x10mm, 15x15mm, etc. |
Dimension Tolerance | ±0.1 mm or better |
Thickness | 0.5mm, 1.0mm, etc. |
Thickness Tolerance | ±0.05 mm or better |
Surface Finish | Single side polished (SSP)/Double sides polished (DSP) |
Parallelism | Parallelism:<30 sec of arc |
Flatness | <λ/4 @ 633 nm |
Surface Quality | S/D 20/10 |
Package | Class 100 clean bag, Class 1000 super clean room |