Description
IRG206 windows are high-performance infrared optical components fabricated from arsenic-selenide chalcogenide glass. This amorphous optical material exhibits an ultra-broad transmission window spanning 0.8 µm to 19 µm, covering the entire SWIR, MWIR, and LWIR atmospheric windows. With a high refractive index of 2.776 @ 10.6 µm and excellent optical homogeneity, IRG206 serves as a cost-effective alternative to crystalline IR materials. Our windows are precision-machined via Single-Point Diamond Turning (SPDT) and finished to stringent optical tolerances, available with custom broadband anti-reflective (BBAR) coatings for 3–5 µm, 8–12 µm, or dual-band operation.
High Precision Polished Chalcogenide Glass IRG206 Windows
Specifications
| Substrate Material: | Chalcogenide Glass |
|---|---|
| Diameter (or Largest Dimension): | 25 mm |
| Thickness: | 2 mm |
| Antireflection Coating: | Uncoated |
| Surface Quality (Scratch-Dig): | 60-40 |
| Surface Flatness: | <= Lambda/4 |
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Features
- Ultra-Broad IR Transmission: Uninterrupted optical transmission from 0.8 µm to 19 µm, ideal for multi-spectral infrared systems
- High Refractive Index: n = 2.776 @ 10.6 µm, enabling compact optical designs with fewer elements
- Excellent Thermal Stability: Glass transition temperature (Tg) of 180°C, suitable for diverse environmental conditions
- Cost-Effective Machinability: Amorphous structure allows high-volume, low-cost production via precision molding and diamond turning
- Non-Hygroscopic: Chemically inert and stable in humid or industrial environments, requiring no special handling
- Low Dispersion: Consistent refractive index across the IR spectrum, minimizing chromatic aberration
Applications
- Thermal Imaging Cameras: Core optical window for commercial & automotive LWIR (8–12 µm) imaging systems
- Infrared Spectrometers (FTIR): High-transmission substrate for broadband infrared spectroscopy
- Surveillance & Security: Multi-spectral IR windows for border control and defensive systems
- Automotive Driver Assistance: Infrared windows for night-vision and pedestrian detection
- Laser Systems: Protective windows for CO₂ lasers (10.6 µm) and low-to-medium power IR lasers
- Industrial Process Monitoring: IR windows for non-contact temperature measurement and thermal inspection
- Medical Infrared Devices: Optical components for diagnostic and analytical IR instrumentation
Frequently Asked Questions
How does IRG206 compare to ZnSe or Ge windows?
What are the key mechanical properties of IRG206?
Why choose IRG206 over crystalline IR materials?
Got more questions? Use the inquiry form to ask the supplier directly.
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