KTaO3 Substrate
Potassium tantalate (KTaO3 or KT) single crystal has a stable cubic structure and can be used to make laser modulators, digital deflectors and...
KTaO3 Substrate
Potassium tantalate (KTaO3 or KT) single crystal has a stable cubic structure and can be used to make laser modulators, digital deflectors and semiconductor devices. Because the crystal has no phase change in the temperature range from absolute zero to its melting point (1645K), and its unit cell parameters match very well with yttrium-barium-copper-oxygen superconductors, and it is promising to be used as a substrat...
- ManufacturerOST Photonics
- CategoryCrystal Wafer and Substrate
- Lead TimeQuoted per order
- CustomizationSize, orientation and surface finish to drawing
Potassium tantalate (KTaO3 or KT) single crystal has a stable cubic structure and can be used to make laser modulators, digital deflectors and semiconductor devices. Because the crystal has no phase change in the temperature range from absolute zero to its melting point (1645K), and its unit cell parameters match very well with yttrium-barium-copper-oxygen superconductors, and it is promising to be used as a substrate material for superconductor films.
OST Photonics offers high quality KTaO3 substrates for researchers and industries. Crystal orientation, size and thickness can be customized according to your requirements.
Features
- Stable crystal structure
- No phase change
Applications
- Laser modulators
- Digital deflectors
- Semiconductor devices
Processing Capability
- Orientation:<100>,<110>,<111>, etc.
- Dimension: 5x5mm, 10x10mm, 20x20mm, etc.
- Thickness: 0.5mm, 1.0mm, etc.
- Available items: substrates, blanks and customized optics
Specification and properties of KTaO3 Substrates
| Crystal Structure | Cubic |
| Space Group | m3m |
| Growth method | Czochralski |
| Melting point | 1352.2 ℃ |
| Lattice constant | 3.984 Å |
| Density | 7.025 g/cm3 |
| Mohs Hardness | 6 Mohs |
| Refractive Index | 2.226@633nm, 2.152@1539nm |
| Thermal Expansion | 4.027×10^-6/K |
| Specific Heat at Room Temperature | 0.378 J/gK |
| Transmission Wavelength | 380~4000 nm |
| Orientation | <100>,<110>,<111>, etc. |
| Orientation tolerance | ±0.5° or better |
| Dimension | 5x5mm, 10x10mm, 20x20mm, 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) |
| Roughness | Ra≤5Å |
| Package | Class 100 clean bag, Class 1000 super clean room |
Other Crystal Wafer and Substrate Materials
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