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Germanium rectangular window is a high-performance optical component designed for superior infrared transmission, excellent mechanical durability, and thermal stability. Engineered from high-purity germanium, it offers outstanding optical clarity and minimal chromatic aberration, making it ideal for infrared imaging, laser optics, aerospace applications, and precision scientific instrumentation. Its resistance to harsh environments ensures long-term reliability in advanced optical systems.
Product Overview
The germanium rectangular window is an optical component made from high-purity germanium material, widely used in various infrared optical systems. Due to its high refractive index, high transmission, and low absorption rate, germanium excels in the transmission and focusing of infrared light. These rectangular windows typically feature flat, smooth surfaces and precise dimensions to meet stringent optical requirements. In addition, germanium windows offer excellent mechanical properties and chemical stability, ensuring stable long-term performance in various complex environments.
Key Features
- High Transmission: Exhibits exceptional light transmission in the infrared band, allowing efficient infrared light transmission.
- High Refractive Index: Germanium has a high refractive index, enabling effective light focusing and improving the precision of optical systems.
- Low Absorption: Features low optical absorption, ensuring efficient light transmission with minimal loss.
- Excellent Mechanical Properties: Provides strong impact resistance and high mechanical strength, making it suitable for demanding work environments.
- Chemical Stability: Resists corrosion from most chemicals, making it suitable for use in harsh environmental conditions.
Applications
- Infrared Spectrometers: Widely used in infrared spectroscopic analysis as an optical window for light transmission.
- Infrared Thermal Imagers: Used in infrared thermal imaging devices, ensuring efficient infrared imaging and detection.
- Fiber Optic Communications: Serves as an optical component in fiber optic communication systems, transmitting infrared light signals.
- Laser Technology: Used in laser systems as lenses, windows, and other optical components, enhancing beam stability and transmission efficiency.
- Scientific Research: Utilized in high-precision research equipment to meet specific optical needs.
| Optical Property | Value |
| Transmission Range | 2-15 μm |
| Reflection Loss | 4.0028 @ 10.6 μm |
| Absorption Coefficient | 1.3 × 10⁻³ @ 3.8 μm |
| 3 × 10⁻² @ 10.6 μm | |
| Structure | Cubic Crystal System |
| Cleavage Planes | <111 |
| Physical Property | Value |
| Density | 5.33 g/cm³ |
| Melting Point | 936 ℃ |
| Thermal Conductivity | 58.61 W/(m·K) @ 293K |
| Thermal Expansion | 6.1 × 10⁻⁶/K @ 298K |
| Knoop Hardness | 780 kg/mm² |
| Specific Heat Capacity | 310 J/(kg·K) |
| Dielectric Constant | 16.6 @ 9.37 GHz |
| Young's Modulus | 102.7 GPa |
| Shear Modulus | 67 GPa |
| Bulk Modulus | 77.2 GPa |
| Poisson's Coefficient | 0.28 |
| Chemical Property | Value |
| Solubility | Insoluble |
| Molecular Weight | 72.61 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 |
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