Silicon circular window is a high-performance optical component designed for superior infrared transmission, excellent thermal stability, and minimal optical distortion. Manufactured from high-purity crystalline silicon, it offers outstanding optical clarity, low refractive index, and mechanical durability, making it an essential material for infrared imaging, laser optics, aerospace applications, and precision scientific instruments. Its resistance to environmental degradation ensures reliable performance in advanced optical systems.
Product Overview
Silicon circular windows are high-performance optical components widely used in optical systems. Made from high-purity silicon material, these windows offer excellent optical performance, especially in the visible and infrared wavelength range (1-7μm), with exceptional transparency. Silicon also has a low reflection and absorption rate, ensuring efficient light transmission in optical systems. Silicon windows are known for their high hardness, low expansion coefficient, and excellent thermal stability, making them suitable for use in various optical environments.
Key Features
- High Transparency: Excellent optical transmission in the 1-7μm wavelength range, suitable for various optical systems.
- Chemical Stability: Good resistance to chemical corrosion, maintaining stable performance in harsh environments.
- Thermal Stability: High thermal conductivity and low thermal expansion coefficient ensure stability in high-temperature environments.
- Mechanical Performance: Silicon’s high hardness provides scratch resistance and allows it to withstand mechanical stress and friction.
- Optical Coatings: Can be coated with various optical coatings, such as anti-reflection coatings or high-reflection coatings, to meet specific optical system requirements.
Applications
- Laser Systems: Used in lasers, laser beam transmission modules, and other optical systems.
- Spectrometers and Telescopes: Used as windows in precision optical instruments, providing efficient optical transmission.
- Optical Communication: Widely used in silicon photonics to enhance data transmission rates and power efficiency.
- High Temperature and Harsh Environment Applications: Ideal for optical protection and transmission in high-temperature, chemically corrosive, and high-mechanical-stress environments.
- Research and Industrial Applications: Used in scientific experiments and industrial equipment as optical components, ensuring high-performance stability.
Optical Properties | Value |
Transmission Range | 1.2-15μm |
Refractive Index | 3.41776% @ 10μm |
Reflection Loss | 46.1% @ 10μm |
Structure | Single Crystal, Synthetic |
Cleavage Planes | <111> |
Physical Properties | Value |
Density | 2.33 g/cm<sup>3</sup> |
Melting Point | 1414 ℃ |
Thermal Conductivity | 163 W/(m×K) @ 313K |
Thermal Expansion | 2.6 × 10<sup>-6</sup>/K @ 293K |
Knoop Hardness | 1100 kg/mm<sup>2</sup> |
Specific Heat | 712.8 J/(kg×K) |
Dielectric Constant | 13 @ f = 9.37 GHz |
Young's Modulus | 130.91 GPa |
Shear Modulus | 79.92 GPa |
Bulk Modulus | 101.97 GPa |
Poisson's Ratio | 0.266 |
Chemical Properties | Value |
Solubility | None |
Molecular Weight | 28.09 g/mol |
Parameter | Range |
Diameter Range | 2-300 mm |
Thickness | 0.12-60 mm |
Surface Finish | 80-50, 60-40, 40-20, 20-10, 10-5 |
Surface Accuracy | λ/2, λ/4, λ/8, λ/10 |
Parallelism | <3' - 30" |
Aperture Transmission | >90% |
Coating | Customizable |