Key Features:
- Emission at 2.79 µm wavelength
- High absorption at water’s absorption peak
- Extensive applications in medical and dental fields
- Low thermal damage to biological tissues
- Efficient pumping using flash lamps
Description: Cr³⁺ sensitized Er³⁺ doped YSGG crystals (Er,Cr:YSGG/Er:YSGG Crystal) are suitable for flash lamp pumping, achieving laser emission at 2.79 µm. This wavelength coincides with water’s absorption peak, earning it the designation of a “water laser.” Compared to the commonly used 2.94 µm Er lasers, the 2.79 µm emission from Cr,Er demonstrates lower attenuation in silica fiber transmission and reduced thermal damage to biological tissues, making it ideal for a wide range of medical applications. Increasing research indicates that Cr,Er lasers have significant potential in dental treatments, expanding their applications in oral healthcare.
Physical Properties:
| Property | Specification |
|---|---|
| Chemical Formula | Er₃Sc₂Ga₃O₁₂ and Er,Cr₃Sc₂Ga₃O₁₂ |
| Doping Concentration | Customizable based on application |
| Melting Point | 1900°C |
| Density | 5.2 g/cm³ |
| Mohs Hardness | 7.5 |
| Thermal Conductivity | 12 W·m⁻¹·K⁻¹ |
Optical Properties:
| Property | Specification |
|---|---|
| Principal Pump Absorption Wavelengths | 970 nm |
| Emission Wavelengths | 2.79 µm |
| Fluorescence Lifetime | 2 ms (upper state), 0.1 ms (lower state) |
| Refractive Index | 1.82 at 2.79 µm |
Standard Specifications:
| Property | Specification |
|---|---|
| Orientation | [111] within ±0.5° |
| Diameter | Up to 3 inches |
| Thickness | 0.5 to 10 mm |
| Surface Quality | 10/5 Scratch/Dig (MIL-PRF-13830B) |
| Surface Flatness | λ/8 at 632.8 nm over 90% aperture |
| Parallelism | < 10 arc seconds |
| Perpendicularity | < 5 arc minutes |
Other Properties:
| Property | Specification |
|---|---|
| Extinction Ratio | > 28 dB |
| Wavefront Distortion | λ/8 @ 632 nm |
| Diameter Tolerance | +0/-0.1 mm |
| Length Tolerance | ±0.5 mm |
| Clear Aperture | > 90% |
| Surface Quality | 10-5 Scratch/Dig |
| Chamfer | ≤ 0.25 mm x 45° |
Applications:
- Medical lasers for surgical and therapeutic procedures
- Laser systems for dental applications
- Industrial laser systems for materials processing
- Scientific research and development
Processing and Handling:
- Er,Cr:YSGG/Er:YSGG Crystal require careful handling to avoid surface damage and contamination.
- Use gloves or finger cots when handling crystals.
- Store in a clean, dry environment with temperature control to prevent thermal shock.
Why Choose Shape Optics:
- We provide high-quality Er,Cr:YSGG/Er:YSGG Crystal with precise doping concentrations and excellent optical properties.
- Our crystals undergo stringent quality control to ensure reliability and performance in demanding applications.
Shape Optics Strength and Capabilities:
- Expertise in crystal growth and fabrication techniques.
- Advanced metrology and inspection facilities to ensure superior product quality.
- Customization options available to meet specific requirements.
- Comprehensive support and consultation services to assist in the integration of Er,Cr:YSGG/Er:YSGG Crystal into various laser systems.