AR Coatings

AR optical coatings significantly improve light transmission and reduce glare in precision optical systems. At i-Photonics, we provide high-performance anti-reflective coating services for industrial, medical, and defense applications, ensuring superior clarity, durability, and efficiency.  

What are anti reflective coatings?  

AR coatings are thin-film anti reflection layers applied to optical surfaces. They are essential for:  

• Laser systems – Preventing energy loss in high-power optics; 
• Imaging devices – Enhancing contrast and resolution;  
• Sensors & detectors – Improving signal-to-noise ratio.  

We offer single-layer anti reflective optical coatings for wide-spectrum applications.  

Key applications & industries  

Our anti-reflective optical coatings serve critical functions across multiple sectors:  

• Laser technology – High-LIDT coatings for 1064 nm and 532 nm laser optics;  
• Telecommunications – Anti reflective coatings for optics (850–1650 nm);  
• Infrared systems – Broadband AR on germanium/zinc selenide for thermal imaging (3–5 µm, 8–12 µm);  
• Medical devices – Anti reflective lenses for OCT, endoscopes, and diagnostic equipment;  

Also, defense and aerospace – Durable coatings for night vision and targeting systems.  

Types of AR coatings  

Anti-reflective coatings come in two primary categories with distinct optical properties. Single-layer coatings target specific wavelengths like 532nm lasers through precise quarter-wave thickness, while multi-layer designs use alternating anti reflective coating materials to achieve broadband performance across wider ranges like 400-1700nm.

Spectral performance varies from single-wavelength precision for laser systems to broadband solutions for imaging applications. Infrared variants are specially engineered for thermal imaging bands (3-12µm), maintaining performance in harsh conditions. The right choice depends on your specific wavelength requirements and operating environment.

Our AR coating capabilities  

We coat a wide range of materials, including:  

• Optical glass, fused silica, sapphire;  
• Germanium, silicon, ZnSe for IR optics.  

Performance features:  

• Reflectance <0.2% at target wavelengths;  
• High laser damage threshold (LIDT);  
• MIL-spec durability (MIL-C-48497, MIL-PRF-13830B).  

Custom AR coating solutions  

We tailor coatings to your exact needs:  

• UV to Far-IR – IBS, E-beam, and ion-assisted deposition  
• Complex geometries – Flat, curved, and large optics (up to 300 mm)  

Also, fast lead times – Prototype to high-volume production.  

Why choose i-Photonics?  

• Expert engineering team – Custom designs for optimal performance;  
• In-house production – Full control over quality & consistency;  
• Military-grade durability – Tested for extreme conditions;  
• Fast EU-based anti reflective coating service – Reliable delivery across Europe.

FAQ  

1. How do AR coatings work? They use interference effects to cancel out reflected light, increasing transmission.  
2. Can you coat IR or UV optics? Yes—we specialize in UV, VIS, NIR, and IR coatings.  
3. What’s the difference between single-layer and broadband AR? Single-layer targets one wavelength; broadband covers a wide spectrum.  
4. How durable are your coatings? They withstand thermal cycling, abrasion, and harsh environments.  

Upgrade your optics today  

Contact us for a quote or technical consultation—custom solutions are available!  Technical datasheets are available upon request.