At Z-Optics, we design premium bandpass filters with FWHM 5~6 nm tailored for applications requiring a balance of spectral selectivity and high throughput, including advanced imaging, fluorescence, and laser systems. Our filters deliver excellent wavelength isolation, high peak transmission, and robust out-of-band blocking to enhance signal fidelity and system sensitivity.

Key Features

  • Precise Spectral Bandwidth: FWHM 5~6 nm, enabling well-defined wavelength selection that reduces spectral noise without sacrificing throughput.
  • High Transmission Efficiency: Achieve up to 90% peak transmission at center wavelengths, maximizing light delivery for sensitive detection applications.
  • Strong Out-of-Band Blocking: Optical Density (OD) 4 or better blocking outside the passband, minimizing stray and background light for superior signal-to-noise ratios.
  • Accurate Center Wavelength Control: Center wavelength tolerance of ±0.5 nm assures consistent performance and reliable system calibration.
  • Durable Hard-Coated Optical Construction: Multi-layer dielectric coatings on UV fused silica substrates ensure long-lasting filter stability and resistance to environmental factors.

Customizable Options: Available center wavelengths span UV to NIR regions with mounted sizes for easy integration into optical setups.

The Bandpass Filter – FWHM 5~6nm from Z-Optics is ideally suited for a variety of high-precision optical applications where selective wavelength transmission and minimal spectral interference are critical. Key applications include:

  • Fluorescence Spectroscopy: Enables precise isolation of emission lines, improving signal clarity and analytical accuracy in biological and chemical fluorescence measurements.

  • Laser Line Selection: Ensures only the laser’s target wavelength passes while blocking other spectral components, enhancing laser system stability and performance.

  • Raman Spectroscopy: Provides spectral filtering to isolate Raman scattering signals with reduced background, crucial for materials identification and chemical analysis.

  • Optical Sensing and Imaging: Enhances performance of sensors and imaging devices by delivering high transmission at the desired wavelength with minimal noise, improving detection sensitivity.

  • Environmental and Medical Diagnostics: Supports systems requiring accurate spectral filtering to detect trace gases, biomarkers, or other analytes with high specificity.

  • Scientific Research and Instrumentation: Fits into advanced optical setups requiring calibration-grade wavelength stability and repeatability for experimental consistency.

These applications leverage the filter’s combination of narrow bandwidth, high transmission, and strong out-of-band rejection to improve the fidelity and sensitivity of optical measurements and systems.