At Z-Optics, our bandpass filters with FWHM 20–35 nm deliver reliable spectral filtering solutions for applications requiring moderate bandwidth and superior optical performance. Designed for enhanced light transmission and effective out-of-band blocking, these filters are ideal for fluorescence imaging, biomedical diagnostics, laser line isolation, and multispectral sensing technologies.

Key Features

  • Optimized Bandwidth: FWHM ranging from 20 to 35 nm for balanced spectral selectivity, enabling clear isolation of target wavelengths while maintaining sufficient light throughput.
  • High Transmission Efficiency: Delivers up to 85% peak transmission at center wavelengths for improved signal strength and sensitivity in your optical system.
  • Robust Out-of-Band Blocking: OD3 or better blocking outside passband to suppress unwanted spectral components and reduce background noise.
  • Durable Coatings: Advanced dielectric coatings ensure stability and durability for demanding operational environments.
  • Versatile Spectral Range: Available in UV, visible, and NIR bands to suit diverse application needs from life sciences to industrial instrumentation.
  • Precision Wavelength Control: Center wavelength tolerance within ±1 nm for consistent, repeatable filtering performance.
  • Compact Form Factor: Compatible with standard optical setups and can be custom-sized upon request.

Common Applications

  • Fluorescence microscopy and imaging
  • Laser line selection and suppression
  • Biomedical and diagnostic instrumentation
  • Environmental and chemical sensing
  • Multispectral and hyperspectral imaging systems
  • Optical communication and photonics research