 |
|
|
|
|
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: |
| l | | 515 nm | 633 nm | 800 nm |
| no | | 2.4921 | 2.4160 | 2.3681 |
| ne | | 2.4247 | 2.3630 | 2.3235 |
|
| 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: |
| l | | 515 nm | 633 nm | 800 nm |
| a | | 3.392 cm-1 | 0.268 cm-1 | 0.005 cm-1 |
|
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 |
Other sizes and specifications on request
© 1996 - 2008 MaTecK GmbH - Im Langenbroich 20 - D-52428 Juelich - phone: +49 (0) 2461 / 9352-0 - fax: +49 (0) 2461 / 9352-11 - Contact: info@mateck.de
|
|
|
|
