Synthetic Fused Silica Filter For Laser Head Cavity
Synthetic Fused Silica is a high-purity glass material made from pure silicon dioxide (SiO₂) through synthetic processes. It has a range of unique properties that make it ideal for use in advanced technologies and industrial applications.
Synthetic fused silica filters are designed for high-performance laser head cavities, offering superior optical clarity, high UV and infrared transmission, and excellent resistance to thermal and mechanical stresses.
Properties of Synthetic Fused Silica
| Property | Value/Description |
| Chemical Composition | SiO₂ (Silicon Dioxide) |
| Purity | >99.99% (impurity levels < 50 ppm) |
| Density | 2.20 g/cm³ |
| Thermal Expansion Coefficient | ~0.5 × 10⁻⁶/°C (very low) |
| Melting Point | ~1700°C (3092°F) |
| Softening Point | ~1665°C (3029°F) |
| Thermal Conductivity | 1.38 W/m·K at 300 K |
| Specific Heat Capacity | 740 J/kg·K |
| Refractive Index | 1.4585 (at 587.6 nm) |
| UV Transmission | Excellent (high transmission from 180 nm to 2500 nm) |
| Optical Transmission Range | 180 nm to 3500 nm (covers UV to near IR) |
| Dielectric Constant | 3.75 (at 1 MHz) |
| Poisson's Ratio | 0.17 |
| Young's Modulus | 72 GPa |
| Tensile Strength | ~50 MPa |
| Hardness (Mohs) | 7 |
| Water Absorption | None (water absorption coefficient is extremely low) |
| Acid Resistance | Excellent resistance to most acids (except hydrofluoric acid) |
| Alkali Resistance | Good resistance to alkali solutions |
| Electrical Resistivity | >10¹⁸ Ω·cm at 20°C (extremely high electrical insulation properties) |
| Transparency | Very high, especially in UV and visible ranges |
Applications:
Laser Cutting and Welding Systems: Protects the laser head cavity and ensures optimal transmission of laser beams for precision cutting and welding operations.
Medical Lasers: Used in high-precision medical lasers, such as those used in ophthalmic surgery, dermatology, and other medical procedures.
Scientific Research: Ideal for laboratory laser systems requiring high purity and precise wavelength filtering for optical experiments and research.
Semiconductor Manufacturing: Essential for laser systems used in photolithography, micromachining, and other semiconductor fabrication processes.
Dimensions and Shapes:
Available in custom sizes and shapes (circular, rectangular, or other) to fit specific laser head cavity designs.
For custom filter sizes, shapes, and coating options, or for bulk order inquiries, please contact our sales team at [your company’s contact details.
Name: Jake Wang
Mobile：+86 16725261381
Tel：
Whatsapp：8616725261381
Email：sales@lygglass.com
Add：Pingming Town Resident Industrial Park, Donghai County, Lianyungang City, Jiangsu Province
