BaTiO3 single crystal has excellent photorefractive properties, high self-pumped phase conjugate reflectivity and two-wave mixing (optical amplification) efficiency, and has huge potential application prospects in optical information storage. At the same time it is also an important substrate substrate material.
OST Photonics offers high quality BaTiO3 substrates for researchers and industries. Crystal orientation, size and thickness can be customized according to your requirements.
Optical information storage
Substrate for epitaxial growth
Excellent photo-refractive properties
Excellent ferroelectric properties
High self-pumped phase conjugate reflectivity
High two-wave mixing (optical amplification) efficiency
Orientation:<100>,<001>,<110>,<111>, etc.
Dimension: 10x10mm, 10x5mm, 5x5mm, etc.
Thickness: 0.5mm, 1.0mm, etc.
Available items: substrates, blanks and customized optics
Crystal System | Tetragona(4m): 13℃< T<132℃ a=3.99Å, c= 4.04Å (at 26℃) | |||||
Density | 6.02 g/cm3 | |||||
Melt Point | 1612 ℃ | |||||
Growth Method | TSSG (Top Seeded Solution Growth) | |||||
Dielectric Constant | ea=3700 ec=135(unclamped) | |||||
ea=2400 ec=60 (clamped) | ||||||
Refractive Index | 515nm | 633nm | 800nm | |||
no | 2.4912 | 2.4160 | 2.3681 | |||
ne | 2.4247 | 2.3630 | 2.3235 | |||
Transmit Wavelengths | 0.43-6.30μm | |||||
Photoelectric Coefficient | rT13=8±2 pm/V rT33=105±10 pm/V rT42=1300±100 pm/V | |||||
Reflectivity of SPPC (at 0 deg. cut） | 50 - 70 % for λ = 515 nm(Ce:BaTiO3) | |||||
40 - 60 % (Pure BaTiO3) for λ = 515 nm | ||||||
50 - 80 % for λ = 633 nm(Ce:BaTiO3) | ||||||
40 - 60 % for λ = 633 nm (Pure BaTiO3) | ||||||
Two-wave Mixing Coupling Constant | 10 -40 cm-1 | |||||
Absorption Loss | λ: 515nm | λ: 633nm | λ: 800nm | |||
α: 0.285 cm-1 | α: 0.108 cm-1 | α: 0.033 cm-1 | ||||
Orientation | <100>,<001>,<110>,<111>, etc. | |||||
Orientation Tolerance | ±0.5° or better | |||||
Dimension | 10x10mm, 10x5mm, 5x5mm, 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) | |||||
Surface Roughness | Ra<10Å | |||||
Package | Class 100 clean bag, Class 1000 super clean room | |||||
Note: The BTO substrates are poled, but with domains BTO single crystal must be stored in temperature above 13 ℃ to avoid phase transition which will cause twin or domain inside crystal | ||||||
