The NBP4260-180nm Infrared Narrow Band Filter from SENBA is a precision-engineered optical component designed for selective wavelength transmission in advanced infrared sensing and analytical systems. Centered at 4260±50nm with a narrow bandwidth of 180±30nm, it provides highly accurate spectral filtering, making it ideal for chemical gas detection, infrared spectroscopy, and scientific measurement applications.
Manufactured using advanced thin-film coating technology on a silicon substrate, the filter ensures high transmittance of ≥75% within the target passband. It also delivers excellent out-of-band rejection, achieving average transmittance of ≤1% across the 1–5µm range outside the passband. This strong blocking performance significantly reduces spectral interference, improving signal clarity and measurement accuracy in sensitive optical systems.
The silicon substrate offers excellent thermal stability, mechanical strength, and long-term reliability, ensuring consistent optical performance even in demanding environments. With a standard diameter of 100±0.2mm and thickness of 0.5±0.05mm, the filter supports stable integration into various optical assemblies. Customization options for size, thickness, and substrate material are available to meet specific application requirements.
Compared to standard infrared filters, the NBP4260-180nm delivers superior spectral precision, enhanced transmission efficiency, and improved blocking capability for high-performance infrared applications.
Key Features:
- Narrow band IR filter centered at 4260±50nm
- High transmittance: ≥75%
- Bandwidth: 180±30nm
- Strong blocking: 1–5µm Tave ≤1%
- Silicon substrate for durability and stability
- Standard size: Ø100±0.2mm, thickness 0.5±0.05mm
- Customizable optical and mechanical specifications
Applications:
- Chemical gas detection systems
- Infrared spectroscopy and analysis
- Environmental monitoring equipment
- Industrial process control
- Scientific research instrumentation
- Optical sensing systems
- Gas leak detection and safety monitoring systems
