AR1S-NIR-DUAL-01 Anti-reflection coating
AR1S-NIR-DUAL-01 is an anti-reflection coating. The measured curve shows a high-transmission region at approximately 717-1500 nm.
- Measured wavelength range: 700-1500 nm
- Peak transmission: ≈ 97.3% at 1480 nm
- Transmission ≥80%: 717-1500 nm
- 800-900 nm: 95.880% average transmission
- 1250-1350 nm: 97.075% average transmission
- Custom options: Wavelength response, dimensions and operating conditions
Values shown are sample measurements. Final specifications are agreed for your order.
AR1S-NIR-DUAL-01 Anti-reflection coating
AR1S-NIR-DUAL-01 is an anti-reflection coating. The measured curve shows a high-transmission region at approximately 717-1500 nm.
- Measured wavelength range: 700-1500 nm
- Peak transmission: ≈ 97.3% at 1480 nm
- Transmission ≥80%: 717-1500 nm
- 800-900 nm: 95.880% average transmission
- 1250-1350 nm: 97.075% average transmission
- Custom options: Wavelength response, dimensions and operating conditions
Values shown are sample measurements. Final specifications are agreed for your order.

Anti-reflection coating (AR1S-NIR-DUAL-01)
AR1S-NIR-DUAL-01 is an anti-reflection coating. The measured curve shows a high-transmission region at approximately 717-1500 nm. Use it when you want to pass a broad range of wavelengths. Add a separate filter if you need to select a specific band.
Optical performance
- Measured wavelength range: 700-1500 nm. Performance outside this measured interval is not established by this curve.
- Selected regions at or above 80% transmission: 717-1500 nm. Approximate measured intervals.
- Peak transmission: Approximately 97.3% at 1480 nm. Peak wavelength is not the same as a defined centre wavelength.
- Average measured transmission, 800-900 nm: 95.880%. Calculated from the factory sample data.
- Average measured transmission, 1250-1350 nm: 97.075%. Calculated from the factory sample data.
- Customization: We can customize stock and sample-book designs. Tell us the wavelength response, size and operating conditions you need.
These values come from the measured samples and help you choose a starting design. We will agree the final specification for your order. Custom versions have their own specifications and measured curves.
Applications to consider
- Infrared optical windows: Consider this window when the wavelengths you want to pass fall within 717-1500 nm. Confirm the substrate and coated surfaces for the assembly.
- Shared optical paths: Consider it when several wavelengths need to pass through the same window. Add separate spectral selection if the channels need to be isolated.
- Instrument throughput improvement: Check how much light the coated optic passes against the needs of your system. Confirm reflectance, working angle and surface quality for your design.
Choosing this filter
- Transmission is broadband and does not itself separate wavelength channels. Confirm the required reflectance, coated surfaces, substrate and angle of incidence.
Custom options
Start with this stock or sample-book design, then tell us what you need to change. We can discuss the wavelength bands, transmission, blocking, angle, glass material, size and operating conditions with you, and agree a specification for your custom filter.
Transmission spectrum
Questions about AR1S-NIR-DUAL-01
What transmission does the AR1S-NIR-DUAL-01 measured sample show?
The sample data gives 95.880% average transmission over 800-900 nm; 97.075% average transmission over 1250-1350 nm. Start with the interval that covers your source and detector. The measurement covers 700-1500 nm; it does not establish performance outside that range.
Does high transmission alone establish the reflection specification for AR1S-NIR-DUAL-01?
The AR1S-NIR-DUAL-01 measurement is transmission through the complete sample, including 95.880% averaged over 800-900 nm. A surface-reflection specification needs its own measurement conditions. Tell us the substrate, coated surfaces and working angle so we can compare the coating in the assembly you actually plan to use.
Discuss this filter with KUPO - include the product reference, source wavelength, working angle and required dimensions.