new material
Silicon window plate with a rectangular aperture is a high-performance optical component designed for superior infrared transmission, mechanical durability, and thermal stability. Made from crystalline silicon, it offers excellent optical clarity, low refractive index, and resistance to environmental degradation, making it ideal for infrared imaging, aerospace applications, laser systems, and precision scientific instrumentation. Its robustness ensures long-term reliability in demanding optical environments.
Product Overview
The silicon rectangular aperture window plate is an optical component made from high-purity silicon material. It is commonly used in various optical systems as a protective window or as part of optical elements, found in devices such as lasers, spectrometers, and telescopes. The manufacturing process involves precision micro or nano-processing techniques, including etching the rectangular aperture on the silicon substrate, followed by polishing and quality inspection to ensure precise dimensions, smooth surface finish, and stable performance.
Key Features
- High Transmittance: The silicon window plate offers excellent optical transparency, effectively transmitting light signals and ensuring efficient optical transmission within the system.
- High Hardness & Stability: Silicon material is known for its high hardness and stability, enabling long-term operation even in harsh environments, which reduces maintenance costs.
- Customizable Aperture Design: The size and shape of the rectangular aperture can be customized according to specific requirements, catering to the unique needs of different optical systems.
- Long Lifespan: Due to the strong properties of silicon, the window plate typically boasts a long service life, making it ideal for optical systems requiring frequent use.
- Precision Manufacturing: Through precise machining, polishing, and strict quality control, the silicon rectangular aperture window plate ensures high accuracy and superior surface quality.
Applications
Silicon window plates (rectangular aperture) are widely used in various optical systems, including:
- Laser Systems: Used in laser systems for light path protection and beam transmission.
- Spectrometers: Integral to optical systems, enabling high-precision spectral analysis.
- Telescopes: Used in astronomical observation devices as part of the optical system for clear image acquisition.
- Other Optical Equipment: Suitable for various optical instruments and sensors requiring high transmittance and stability.
| Optical Property | Value |
| Transmission Range | 1.2-15 μm |
| Refractive Index | 3.41776 @ 10μm |
| Reflection Loss | 46.1% @ 10μm |
| Structure | Single crystal, synthetic |
| Cleavage Planes | <111 |
| Physical Property | Value |
| Density | 2.33 g/cm³ |
| Melting Point | 1414 ℃ |
| Thermal Conductivity | 163 W/(m·K) @ 313K |
| Thermal Expansion | 2.6 × 10⁻⁶/K @ 293K |
| Knoop Hardness | 1100 kg/mm² |
| Specific Heat Capacity | 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 Coefficient | 0.266 |
| Chemical Property | Value |
| Solubility | Insoluble |
| 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 |
