AR1S-MULTI4-01 Anti-Reflective (AR) Coating (Single Side)
Dual-band AR anti-reflection coating minimising surface reflections across multi-range wavelengths (400 – 1100 nm) for maximum throughput and ghost-free optical performance.
- Coating type: Dual-band AR (single-side coated)
- Design waveband: 400 – 1100 nm
- Average reflectance (Ravg): < 40.82 % per surface
- Peak reflectance: < 92.17 % (worst case in waveband)
- Resulting transmittance: ≥ 55.2 % 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-MULTI4-01 AR delivers Coating type Dual-band AR (single-side coated), Design waveband 400 – 1100 nm, and Average reflectance (Ravg) < 40.82 % per surface.
The hard-oxide coating is built for repeated handling, heat, and cleaning.
Best suited for:
Broadband optical systems spanning visible through near-infrared that require anti-reflection performance across an exceptionally wide wavelength range — ideal for multi-spectral cameras, broadband spectrometers, and universal-application optical windows
Description
AR1S-MULTI4-01 is a single-side anti-reflection coating engineered for simultaneous high transmission across four discrete infrared bands: 1024-1104 nm, 1260-1340 nm, 1480-1650 nm, and 1960-2040 nm. Average transmission exceeds 95 % in every band, peaking at 97.4 % in the third window (1480-1650 nm) and reaching 97.6 % near 1611 nm. Between the target bands, the coating maintains > 95 % from approximately 1020 nm to 2050 nm, effectively providing broadband coverage with four guaranteed high-transmission zones. Below 1000 nm, transmission drops sharply (< 5 % at 900 nm), ensuring the coating functions as a combined AR and NIR-pass element.
Key Advantages
- Quad-band Tavg > 95 % in each of four discrete windows - addresses four critical infrared channels with a single coating, dramatically reducing system complexity.
- Broadband backbone above 1020 nm - T > 95 % from 1020 nm to 2050 nm fills the inter-band gaps, supporting continuous-spectrum applications alongside discrete-band use.
- Sharp visible/NIR cut-off - T drops below 5 % by 900 nm, providing built-in visible-light rejection without an additional blocking filter.
- Hard-oxide durability - ion-assisted deposition delivers a coating that withstands thermal cycling, humidity, and aggressive cleaning protocols.
- 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 and hyperspectral imaging - provides four pre-defined analysis windows matching common atmospheric transmission bands for airborne and satellite remote sensing.
- Gas analysis and TDLAS (Tuneable Diode Laser Absorption Spectroscopy) - covers absorption lines of H2O (1370 nm, 1940 nm), CO2 (1570 nm, 2000 nm), and CH4 (1650 nm) across the four bands.
- Telecom multi-band systems - simultaneously supports O-band (1310 nm), C/L-band (1530-1625 nm), and extended SWIR diagnostics on a single optic.
- Industrial process control - enables simultaneous near-infrared measurements at four wavelengths for real-time composition, moisture, and thickness monitoring.
- Defence and environmental sensing - passes four atmospheric windows while blocking visible light, supporting covert multispectral surveillance and target identification.
Need a prototype in days or volume coatings next quarter? KUPO Optics can coat, dice, and ship AR1S-MULTI4-01 to your exact size, shape, and substrate specifications.
FAQ
AR1S-MULTI4-01 FAQ
What is AR1S-MULTI4-01 and what is it used for?
AR1S-MULTI4-01 is an Anti-Reflective optical product. Dual-band AR anti-reflection coating minimising surface reflections across multi-range wavelengths (400 – 1100 nm) for maximum throughput and ghost-free optical performance. Common uses include Broadband optical systems spanning visible through near-infrared that require anti-reflection performance across an exceptionally wide wavelength range — ideal for multi-spectral cameras, broadband spectrometers, and universal-application optical windows.
What are the key optical specs of AR1S-MULTI4-01?
Key published specs for AR1S-MULTI4-01 include Coating type: Dual-band AR (single-side coated); Design waveband: 400 – 1100 nm; Average reflectance (Ravg): < 40.82 % per surface; Peak reflectance: < 92.17 % (worst case in waveband); Resulting transmittance: ≥ 55.2 % T (single-side coated; uncoated surface contributes ~4 % R).
What applications is AR1S-MULTI4-01 best suited for?
KUPO lists the best-suited applications as Broadband optical systems spanning visible through near-infrared that require anti-reflection performance across an exceptionally wide wavelength range — ideal for multi-spectral cameras, broadband spectrometers, and universal-application optical windows.
Can AR1S-MULTI4-01 be customized for size, substrate, or coating requirements?
KUPO lists the construction for AR1S-MULTI4-01 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-MULTI4-01?
The published angle of incidence for AR1S-MULTI4-01 is 0° (normal incidence); performance degrades gradually at higher angles. The hard-oxide coating is built for repeated handling, heat, and cleaning.
