Yb:CaF₂(Ytterbium-Doped Calcium Fluoride), produced using the Czochralski growth technique, is a premier choice for advanced laser applications due to its exceptional optical properties. This crystal is characterized by its long fluorescence lifetime and broad absorption bands, making it highly suitable for diode pumping and high-power laser operation.

Key Features

• Long Fluorescence Lifetime: Approximately 2.2 ms, supporting stable laser operation
• Broad Absorption Bands: Efficient pumping at 979 nm with an absorption cross-section of 5.4 × 10^-21 cm²
• Wide Optical Transmission Range: 0.12 µm to 10 µm, accommodating various laser wavelengths
• Low Nonlinear Effects: Minimal nonlinearity under intense irradiation, ideal for high-power and ultra-short pulse generation
• Custom Coatings Available: Tailored coatings to meet specific application requirements

Basic Properties

• Dopant Concentration: 1~10 at.%
• Absorption Peak Wavelength: 979 nm
• Absorption Cross Section @980 nm: 5.4 × 10^-21 cm²
• Emission Cross Section @1035 nm: 2.3 × 10^-21 cm²
• Refractive Index @1035 nm: 1.42866
• Crystal Structure: Cubic
• Cleavage Plane: (111)
• Melting Point: 1418 ?
• Nonlinear Refractive Index: 1.9 × 10^-16 cm²/W
• Density: 3.18 g/cm³
• Thermal Conductivity: 9.71 W/m/K
• Thermal Expansion Coefficient: 18.41 × 10^-6 /K
• Mohs Hardness: 4

Yb:CaF₂ from CASTECH is engineered for excellence in laser applications, providing both durability and high performance in demanding environments.