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2000-5000nm AR Coated Silicon Custom Infrared Windows
2000-5000nm AR Coated Silicon Custom Infrared Windows is designed for high transmission and low reflection in 2000-5000nm. Coligh manufactures infrared windows
- Broad band anti reflective coating
- Broad band high transmission range 2000-4000nm
- Silicon substrate
Broadband Anti-Reflection Silicon Window 2-5 Micron Range Description
2000-5000nm AR Coated Silicon Custom Infrared Windows Coligh manufactures is a high-performance optical window designed for the mid- and far-infrared bands.
- We use high-efficiency anti-reflection coating technology and optimize the design for the 2000-5000nm band. The multi-layer dielectric film coating increases the transmittance to more than 95%, significantly reducing the surface reflection loss.
- We use high-purity single-crystal silicon substrate. Silicon material has natural low absorption characteristics in the 2-5μm band. Combined with AR coating, it further reduces energy loss and ensures high-fidelity transmission of infrared signals. It is suitable for high-precision detection.
- The silicon substrate itself has excellent environmental tolerance. The substrate is resistant to high temperature and thermal shock. It is suitable for high-temperature industrial environments and chemical corrosion.
2000-5000nm AR Coated Silicon Custom Infrared Windows Technical Datasheet
| Parameter | Specification |
| Substrate Material | Silicon |
| Wavelength Range | 2000-5000nm |
| Coating Type | Anti-Reflective (AR) |
| Average Transmittance | ≥ 95% (within 2000-5000nm range) |
| Surface Quality | 60-40, 40-20 |
| Coating Method | Ion-assisted deposition / Electron-beam evaporation |
| Custom Options | Available upon request (wavelength tuning, dual-side, size,shape) |
2000-5000nm AR Coated Silicon Custom Infrared Windows Applications
Semiconductor wafer defect detection
Semiconductor manufacturing requires high-precision detection of micron-level defects on the surface of the wafer. Traditional visible light cannot penetrate silicon-based materials, while infrared light 2-5μm can penetrate silicon wafers and directly observe the internal structure. The 2000-5000nm infrared window can be used as an optical path, allowing infrared light to penetrate the silicon wafer, and cooperate with thermal imaging or infrared cameras to capture internal defects
Fourier infrared spectrometer
FTIR requires wide-band infrared light to penetrate the sample to analyze the composition. Ordinary materials are easily damaged by moisture absorption, and silicon materials are more stable. The 2000-5000nm high-transmittance silicon window is used as the optical interface of the sample chamber to reduce optical path loss and ensure the accuracy of spectral data.
Missile infrared guidance window
Missile guidance requires tracking targets through infrared signals during high-speed flight. The window material needs to be resistant to high temperature, impact and high transmittance. The silicon window acts as a protective cover, allowing 3-5μm band infrared signals to penetrate, and the AR coating improves the clarity of target recognition. Ensure stable signal transmission in complex environments.
