钛酸钡单晶 BaTiO3 - Barium Titanate Crystal
Description
BaTiO3 is a very unique crystal with superior photo-refractive and ferroelectric properties. MaTecK supplies both of substrate grade and photo refractive grade BaTiO3 single crystal with excellent quality and affordable price.
Typical Properties
Crystal Structure: | Tetragonal (4m) 9°C < T < 130.5 °C a=3.99 Å, c= 4.04 Å | |||||||||||||||
Growth Method: | Top Seeded Solution Growth | |||||||||||||||
Melting Point: | 1600 °C | |||||||||||||||
Density: | 6.02 g/cm3 | |||||||||||||||
Dielectric constants: | ea = 3700, ec = 135 (unclamped) ea = 2400, ec = 60 (clamped) | |||||||||||||||
Index of Refraction: |
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Transmission wavelength: | 0.45 ~ 6.30 μm | |||||||||||||||
Electro Optic Coefficients: | rT 13 = 11.7 ± 1.9 pm/V rT 33 = 112 ± 10 pm/V rT 42 = 1920 ± 180 pm/V | |||||||||||||||
Reflectivity of SPPC ( at 0 deg. cut ): | 50-70% (max. 77%) for l = 515 nm 50-80% (max: 86.8%) for l = 633 nm | |||||||||||||||
Two-wave mixing coupling constant: | 10-40 cm-1 | |||||||||||||||
Absorption loss: |
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标准 BTO晶体产品 Standard BTO Crystal Products
Refractive Grade BTO: (Fully electric poled with single domain) | 3x3x3 mm, 2-4 faces polished 5x5x5 mm, 2-6 faces polished |
Substrate grade BTO: (poled, but with domains) | 5x5x1.0 mm, <100> or <001> Orientation 1-2 sides polished 10x10x1.0 mm, <100> or <001> Orientation 1-2 sides polished |
BTO crystal must be stored in temperature above 10 °C to avoid phase transition which will cause twin or domain inside crystal
