Broad IR Beam Attenuation Optics
CVD ZnSe IR Attenuator Ø40mm 2 to 20 µm 20/80 R/T Ratio
Precision CVD ZnSe IR attenuators (2-20µm) with 20/80 R/T ratio. Ideal for thermal imaging & laser control. Request a quote from iroptical.
Product Overview
The iroptical CVD ZnSe Infrared Attenuator is engineered for broadband optical power control across thermal imaging, infrared spectroscopy, and high-power laser applications. Manufactured from optical-grade CVD Zinc Selenide, this precision ir attenuator provides stable 20/80 reflection-to-transmission performance over the 2 µm to 20 µm spectral range. Designed for flexible angle of incidence operating conditions, it delivers exceptional thermal stability and minimal wavefront distortion for advanced beam control optics setups.
Technical Specifications
| Parameter | Specification |
|---|---|
| Base Material | CVD Zinc Selenide (ZnSe) |
| Spectral Operating Range | 2 µm to 20 µm |
| Clear Aperture | Diameter 40 mm |
| Substrate Thickness | 3.0 mm |
| Operating Angle of Incidence | 15 to 45 degrees |
| Reflection / Transmission Ratio | 20/80 ± 25 percent at 2 to 20 µm |
| Surface Parallelism | Less than 1 arc minute |
| Surface Quality | 60-40 scratch-dig |
Applications
This broadband infrared attenuator is optimized for power management and signal calibration in sophisticated electro-optical systems. Typical integration scenarios include:
Protection of thermal sensing probes and pyrometers against high-flux infrared overload.
Beam attenuation and dynamic range adjustments in high-resolution thermal camera systems.
Spectral power management in FTIR spectrometers and infrared gas detection apparatus.
CO2 laser and mid-to-long wave infrared laser sampling assemblies.
Customization & Service Capabilities
iroptical maintains an extensive in-stock selection of standard ZnSe components to accelerate early-stage prototyping and urgent production requirements. For specialized optical architectures, we offer full OEM customization services, including custom clear apertures, tailored R/T ratios, modified thickness profiles, and anti-reflection or partial-reflection thin-film coatings. All custom components undergo strict metrology verification to guarantee world-class precision, repeatable quality, and predictable delivery timelines.
Engineering Consultations & Sourcing Support
Balancing power throughput, angular sensitivity, and thermal lensing in broad-spectrum IR optical paths often presents complex trade-offs for engineering teams. Whether you require standard Ø40mm stock units for rapid verification or modified physical tolerances to fit specialized housings, iroptical delivers verified performance and reliable technical guidance. Contact our optical engineering team at sales@iroptical.com to request full datasheets, discuss custom specifications, or receive an immediate quotation.
Technical Parameters
Detailed specifications are not available for this product yet. Please contact the team for application guidance.