Provide One-stop Solutions For Si Materials
Crafted with precision and engineered for performance, Jingge Semi Optical Silicon Windows are the ultimate choice for demanding infrared (IR), near-infrared (NIR), and mid-wave infrared (MWIR) applications. These windows deliver exceptional transmission across 1.2–8 µm wavelengths, making them ideal for thermal imaging, laser systems, and spectroscopic instruments.
Constructed from high-purity monocrystalline silicon (≥99.999999%), our windows offer superior thermal stability, mechanical durability, and resistance to harsh environments. Their low density (2.329 g/cm³) ensures lightweight designs, while advanced anti-reflective (AR) coatings (e.g., 3–5 µm) enhance transmission efficiency to over 95% . Customization options include precision polishing, edge finishing, and tailored geometries, ensuring compatibility with aerospace, defense, and industrial systems.
Trusted by leading OEMs and research institutions, our silicon optics combine cutting-edge materials science with ISO-certified manufacturing. Explore our range of UV-Visible to IR windows and experience unmatched clarity, reliability, and innovation in optical solutions.
Technical Parameters
| Optical Properties | |
| Transmission Range | 1.2-15μm |
| Refractive Index | 3.41776%@10μm |
| Reflection Loss | 46.1%@10μm |
| Structure | Single crystal,synthetic |
| Cleavage Planes | <111> |
| Physical Properties | |
| Density[g/cm3] | 2.33 |
| Melting Point [℃] | 1414 |
| ThermalConductivity [W/(m×K)] | 163 @ 313K |
| Thermal Expansion [10-6/K] | 2.6 @ 293K |
| Knoop Hardness [kg/mm2] | 1100 |
| Specific Heat Capacity [J/(kg×K)] | 712.8 |
| Dielectric Constant | 13 @f= 9.37GHz |
| Young’s Modulus (E) [GPa] | 130.91 |
| Shear Modulus(G) [GPa] | 79.92 |
| Bulk modulus(K) [GPa] | 101.97 |
| Poisson Coefficient | 0.266 |
| Chemical Properties | |
| Solubility / g/L | None |
| Molecular Weight / g/mol | 28.09 |
| Project | Specification |
|---|---|
| Size range | 2-300mm |
| Thickness | 0.12-60mm |
| Finish | 80-50，60-40，40-20，20-10，10-5 |
| Face | λ/2，λ/4，λ/8，λ/10 |
| Parallelism | <3'-30” |
| Clear aperture | >90% |
Technical Advantages
Broad Infrared Transmission：Covers 1.2-7μm spectrum with extended performance at 10.6μm (CO₂ lasers) and MWIR/LWIR detection.
Ultra-High Purity Monocrystalline Silicon：99.99999% purity with low defect density, ensuring optical homogeneity and long-term reliability.
Exceptional Thermal Stability：Low CTE (2.6×10⁻⁶/°C), operates from -200°C to +500°C, ideal for high-power lasers and harsh environments.
Custom Anti-Reflective Coatings：DLC/AR coatings reduce reflection to <0.5%@3-5μm, achieving >95% transmission across wavelengths.
Superior Chemical Resistance：Resists acids, alkalis, solvents, and humidity, critical for aerospace and defense applications.
Precision Manufacturing Expertise：Custom sizes (Φ5mm to Φ300mm) with <1nm surface roughness, meeting nano-level optical specifications.