Fused silica rectangular window is a high-performance optical component renowned for its exceptional purity, superior ultraviolet and infrared transmission, and outstanding thermal stability. Manufactured from high-purity silica, it offers excellent optical clarity, chemical resistance, and durability, making it an ideal material for laser systems, spectroscopy, aerospace applications, and precision scientific instruments. Its low refractive index and minimal optical distortion ensure reliable performance in demanding optical environments.
Product Overview
The fused silica rectangular window is an optical element made from fused silica material, known for its exceptional optical properties. It is widely used in fields such as aerospace, military, medical, and scientific research. Typically, it serves as a protective window for electronic sensors or environmental detectors, isolating the internal components from external environments and ensuring the safety of the internal components. Fused silica offers high transparency, low refractive index, low dispersion, high thermal stability, and low thermal expansion, making it one of the most commonly used optical elements.
Key Features
- High Transparency: Offers excellent light transmission from ultraviolet to infrared wavelengths, making it suitable for a wide range of optical applications.
- Low Refractive Index & Low Dispersion: Helps reduce chromatic aberration in optical systems, improving imaging quality.
- High Thermal Stability: Can operate stably in high-temperature environments, suitable for extreme conditions.
- Low Thermal Expansion: Reduces optical performance fluctuations caused by temperature changes.
- High Mechanical Strength: Has good hardness and wear resistance, ensuring long-term stability in use.
- Good Chemical Stability: Resistant to most chemical substances, making it suitable for harsh environments.
Applications
- Aerospace: Used as a protective window for optical sensors in aerospace systems.
- Military: Employed in infrared systems and laser applications as protective windows or optical components.
- Medical: Applied in medical imaging and laser treatment equipment to ensure system stability.
- Scientific Research: Widely used in scientific instruments, especially in optical systems that require high transparency and stability.
- High-Temperature Environments: Suitable for optical systems in high-temperature environments, ensuring stable optical performance despite temperature fluctuations.
Optical Property | Value |
Transmission Range | 0.18-2.1 μm |
Refractive Index (@0.5876μm) | 1.4585 |
Physical Property | Value |
Density | 2.21 g/cm³ |
Melting Point | 1900 ℃ |
Thermal Conductivity | 1.35 W/(m·℃) |
Thermal Expansion | 4.0×10⁻⁶ ℃⁻¹ |
Specific Heat Capacity | 0.728×10⁻³ J/(Kg·℃) |
Young's Modulus | 7.36 GPa |
Shear Modulus | 3.14 GPa |
Poisson's Coefficient | 0.17 |
Chemical Property | Value |
Solubility | Insoluble |
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 |