Cr:Al2O3 – Laser Crystal – Gain Medium – Customized products
Cr:Al2O3 crystal products, also known as Ruby. It is a kind of laser crystal product with excellent comprehensive performance. It is widely used in optics and solid-state lasers. The product has the characteristics of high hardness and obvious dichroism. Can be used in optical glass, watch parts, ruby laser products.
Note:
$100 is a deposit, not the final price of the product. Please contact us for price if needed.
Basic Parameters
| Chemical Formula | Cr3+:Al2O3 |
| Crystal Structure | Hexagonal |
| Lattice Constant (Å) | a = 4.748; c = 12.957 |
| Crystal System | Triangular |
| Axial Propertie | Uniaxial |
| Growth method | CZ |
| Melting Point | 2040℃ |
| Refractive Index | np = 1.759; nm = 1.767 |
| Birefringence | 0.0082 |
| Density (g/cm3) | 3.98 |
| Mohs Hardness | 9 |
| Specific Heat Capacity @18℃ (J kg-1 K-1) | 761 |
| Thermal Conductivity @25°C (W cm-1 K-1) | |
| Perpendicular to the C axis | 0.35 |
| Parallel to the C axis | 0.33 |
| Thermal Expansivity (20 – 100°C) | |
| Perpendicular to the C axis | 4.78×10-6 K-1 |
| Parallel to the C axis | 5.31×10-6 K-1 |
Standard
| Tuning Range (nm) | 680 – 1100 |
| Pump Range (nm) | 450 – 532 |
| Absorption Coefficient @510 nm (cm-1) | 0.5 – 2.5 |
| FOM | >200 |
| Orientation | 90° to c axis |
| Geometry | flat-flat / Brewster |
| Parallelism | 10″ |
| Flatness | 0.2 |
| Orientation Tolerance | < 5° |
| Wide-band AR coating (%) | < 0.2 |
| Dia (mm) | (3 – 40) ± 0.1 |
| Length (mm) | (10 – 140) ± 0.5 |
Spectrum
Cr: ZnSe(Chromium Zinc Selenide) - Laser Crystal - Gain Medium - Customized products 
