TiO2
Titanium dioxide (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). TiO2 crystal is attracting attention also as a substrate for epitaxial growth.CasCrysTech (CCT) provides high quality Titanium dioxide (TiO2) crystals upon request from customers.
Uses/Applications
Spectral prisms, polarization and substrate.
Features/Benefits
Large birefringence and refractive index
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Crystal Structure
Tetragonal
Growth Method
Optical floating zone method
Lattice Constant
a=4.5936Å c=2.9582 Å
Density
4.26（g/cm3）
Mohs Hardness
7（mohs）
Heat Capacity
0.17 (KJ/kg)（25℃）
Transmission Wavelength
0.5～4.5um
Refractive Index
no=2.47 ne=2.73 at λ=1.3μm
Dielectric Constant
~180 //<001>; ~90 ⊥<001>
Thermo-Optical coefficient
dη/dT：a：-0.72×10-6/k ; c：-0.42×10-6/k
Thermal Expansion
a：7.14×10-6 /K；c：9.19×10-6/K
Boule Dimension
Φ17×80mm
Orientation
<100>;<110>;<001>;<111>
Orientation Tolerance
±0.5°
Dimension
5×5mm、5×10mm、10×10mm
Dimension Tolerance
±0.05mm
Processing Parameters for Prisms
Parallelism
<30″
Flatness
<λ/4
S/D
20/10
Polishing
One side or two sides
Package
Class 100 clean bag, Class 1000 super clean room
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Dimension
5×5mm、5×10mm、10×10mm
Dimension Tolerance
±0.05mm