new material
Germanium wedge plates are high-performance optical components designed for superior infrared transmission, excellent thermal stability, and precise beam deviation control. Manufactured from high-purity germanium, these wedge-shaped plates offer outstanding optical clarity, minimal chromatic aberration, and durability, making them essential for infrared imaging, laser optics, aerospace applications, and precision scientific instruments. Their ability to withstand harsh environments ensures reliable performance in advanced optical systems.
Product Overview
Germanium (Ge) wedge plates are optical components made from germanium material, featuring a unique wedge shape. They are commonly used to alter the direction and focus of light beams. The non-parallel design on both surfaces helps effectively eliminate interference effects (Etalon effect) caused by reflections from high-parallelism windows, while also reducing optical feedback interference in the laser cavity, thus improving laser output stability. Germanium wedge plates are widely used in laser beam correction, optical transmission, and precision optical instruments, helping to control beam displacement.
Key Features
- High Light Transmission: Germanium offers excellent transmission in both visible and infrared wavelengths, making it suitable for a wide range of optical applications.
- Low Reflectivity: With surface coating, germanium wedge plates have low reflectivity, effectively reducing light loss and improving optical system efficiency.
- High Thermal Stability: Germanium has excellent thermal stability, maintaining outstanding optical performance in high-temperature environments.
- Excellent Beam Control: The wedge design allows for precise control of the beam’s displacement direction.
- Low Absorption: Germanium material has low light absorption, ensuring minimal loss as light passes through.
- Precision Manufacturing: The plates are processed with precision cutting, grinding, and polishing to ensure surface quality and high accuracy.
Applications
- Laser Systems: Used in lasers and laser beam correction systems, germanium wedge plates play a critical role in beam displacement and distortion, ensuring stable laser output.
- Optical Instruments: Widely applied in high-precision devices like optical sensors and spectrometers to enhance system performance.
- Optical Transmission: Used to improve optical transmission efficiency, reduce reflective losses, and are commonly used in infrared and visible light optical systems.
- Beam Displacement Control: When combined with other optical components, germanium wedge plates can precisely control beam displacement, enhancing the accuracy and stability of optical systems.
- Infrared Applications: Due to the excellent performance of germanium in the infrared range, these plates are frequently used in infrared optical devices such as infrared imaging systems and LiDAR (Light Detection and Ranging).
| 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 |
