AR1S-NIR-DUAL-01 Anti-Reflective (AR) Coating (Single Side)
Dual-band AR anti-reflection coating minimising surface reflections across nir dual-band wavelengths (700 – 1100 nm) for maximum throughput and ghost-free optical performance.
- Coating type: Dual-band AR (single-side coated)
- Design waveband: 700 – 1100 nm
- Average reflectance (Ravg): < 2.27 % per surface
- Peak reflectance: < 25.84 % (worst case in waveband)
- Resulting transmittance: ≥ 93.7 % T (single-side coated; uncoated surface contributes ~4 % R)
- AOI: 0° (normal incidence); performance degrades gradually at higher angles
- Substrate: Borofloat® or customer-specified glass
- Construction: Ion-assisted hard-oxide; 5 – 450 mm shapes, 0.21 – 3.8 mm thick
- Custom options: Wavelength range tuning, V-coat for single wavelength, custom substrates, rapid prototypes
Learn more
AR1S-NIR-DUAL-01 AR delivers Coating type Dual-band AR (single-side coated), Design waveband 700 – 1100 nm, and Average reflectance (Ravg) < 2.27 % per surface.
The hard-oxide coating is built for repeated handling, heat, and cleaning.
Best suited for:
Dual-wavelength NIR sensing systems that operate at two specific near-infrared bands — such as differential absorption LIDAR, two-colour pyrometry, or dual-channel gas detection — where AR performance must be optimised at both target wavelengths simultaneously
Description
AR1S-NIR-DUAL-01 is a single-side anti-reflection coating engineered for simultaneous high transmission in two discrete near-infrared bands: 800-900 nm and 1250-1350 nm. Average transmission exceeds 95.9 % in the first band and 97.1 % in the second, with the coating maintaining > 95 % throughout both windows. Between bands (900-1250 nm), transmission remains above 93 %, while the long-wavelength tail holds > 96 % out to 1500 nm. This dual-band design allows a single coated optic to serve two distinct NIR channels without the need for separate dedicated components.
Key Advantages
- Dual-band performance with Tavg > 95.9 % at 800-900 nm and > 97.1 % at 1250-1350 nm - addresses two key NIR windows with a single coating, reducing component count and alignment complexity.
- T > 93 % across the full 900-1250 nm inter-band region - maintains strong throughput even between the target bands, supporting broadband NIR applications.
- Flat long-wavelength response - T > 96 % from 1200 nm to 1500 nm provides headroom for SWIR extension if needed.
- Hard-oxide durability - ion-assisted deposition ensures long-term stability under thermal cycling, humidity, and cleaning.
- Custom formats available - round, square, or free-form blanks from 5 mm to 450 mm, thickness 0.21-3.8 mm, on Borofloat®, soda-lime, Schott D263 T, or Corning Eagle XG substrates.
Typical Applications
- Multispectral remote sensing - enables simultaneous acquisition of 850 nm vegetation-reflectance data and 1300 nm water-absorption data through a single optical channel.
- LiDAR and 3D sensing - supports both 850 nm and 1310 nm ranging wavelengths on a shared receiver optic, simplifying dual-wavelength system design.
- Optical coherence tomography (OCT) - transmits both the 850 nm and 1300 nm bands used in ophthalmic and dermatological OCT with minimal surface loss.
- Fibre-optic test and measurement - covers 850 nm multimode and 1310 nm single-mode test wavelengths on a single reference window.
- Industrial sorting and inspection - passes two NIR analysis bands for simultaneous material classification and moisture detection in food, recycling, and pharmaceutical lines.
Need a prototype in days or volume coatings next quarter? KUPO Optics can coat, dice, and ship AR1S-NIR-DUAL-01 to your exact size, shape, and substrate specifications.
FAQ
AR1S-NIR-DUAL-01 FAQ
What is AR1S-NIR-DUAL-01 and what is it used for?
AR1S-NIR-DUAL-01 is an Anti-Reflective optical product. Dual-band AR anti-reflection coating minimising surface reflections across nir dual-band wavelengths (700 – 1100 nm) for maximum throughput and ghost-free optical performance. Common uses include Dual-wavelength NIR sensing systems that operate at two specific near-infrared bands — such as differential absorption LIDAR, two-colour pyrometry, and or dual-channel gas detection — where AR performance must be optimised at both target wavelengths simultaneously.
What are the key optical specs of AR1S-NIR-DUAL-01?
Key published specs for AR1S-NIR-DUAL-01 include Coating type: Dual-band AR (single-side coated); Design waveband: 700 – 1100 nm; Average reflectance (Ravg): < 2.27 % per surface; Peak reflectance: < 25.84 % (worst case in waveband); Resulting transmittance: ≥ 93.7 % T (single-side coated; uncoated surface contributes ~4 % R).
What applications is AR1S-NIR-DUAL-01 best suited for?
KUPO lists the best-suited applications as Dual-wavelength NIR sensing systems that operate at two specific near-infrared bands — such as differential absorption LIDAR, two-colour pyrometry, or dual-channel gas detection — where AR performance must be optimised at both target wavelengths simultaneously.
Can AR1S-NIR-DUAL-01 be customized for size, substrate, or coating requirements?
KUPO lists the construction for AR1S-NIR-DUAL-01 as Ion-assisted hard-oxide; 5 – 450 mm shapes, 0.21 – 3.8 mm thick. Published custom options include Wavelength range tuning, V-coat for single wavelength, custom substrates, rapid prototypes.
What should I know about angle of incidence and durability for AR1S-NIR-DUAL-01?
The published angle of incidence for AR1S-NIR-DUAL-01 is 0° (normal incidence); performance degrades gradually at higher angles. The hard-oxide coating is built for repeated handling, heat, and cleaning.
