Yb: CaF2 - Ytterbium Doped Calcium Fluoride
Featured Product from CASTECH, Inc.
Ytterbium-doped Calcium Fluoride (Yb: CaF2), grown using the advanced Czochralski method, is a high-performance laser crystal. Its broad absorption and emission bands, coupled with a long fluorescence lifetime, make it a preferred choice for diode-pumped laser systems. Its low quantum defect and resistance to nonlinear effects ensure reliability under intense laser irradiation, enabling ultra-short pulse generation and high-power operations.
Key Features:
- Low Quantum Defect: Enhances efficiency and reduces thermal load.
- Long Fluorescence Lifetime: Supports sustained high-power laser applications (2.2 ms).
- Wide Optical Transmission Range: Extends from 0.12 µm to 10 µm.
- Limited Nonlinear Effects: Stable performance under intense irradiation.
- Customizable Coatings: Tailored to specific application needs.
Specifications:
| Parameter | Value |
|---|---|
| Dopant Concentration | 1–10 at.% |
| Absorption Peak Wavelength | 979 nm |
| Absorption Cross Section @980 nm | 5.4×10−215.4 × 10^{-21} cm² |
| Emission Cross Section @1035 nm | 2.3×10−212.3 × 10^{-21} cm² |
| Refractive Index @1035 nm | 1.42866 |
| Fluorescence Lifetime | 2.2 ms |
| Crystal Structure | Cubic |
| Melting Point | 1418 ? |
| Nonlinear Refractive Index | 1.9×10−161.9 × 10^{-16} cm²/W |
| Density | 3.18 g/cm³ |
| Thermal Conductivity | 9.71 W/m·K |
| Thermal Expansion Coefficient | 18.41×10−618.41 × 10^{-6}/K |
| Mohs Hardness | 4 |
Yb: CaF2 is ideal for applications requiring high precision and reliability in lasers, such as industrial machining, medical devices, and scientific research. Customizable coatings further enhance its versatility.
