Ultra narrow spectral filter for focused beam


The different optical filtering solutions require a compromise between the angular tolerance, bandwidth and implementation complexity. None enables for focused beams.
Our solution: transmission filter for (multi) spectral sensor based on the resonant grating principle.


  • Spectroscopy
  • Microscopy
  • Surveillance (ex: gas detection)
  • Medical diagnosis
  • Environmental monitoring
  • Optical sorting
  • Industrial quality control
  • Telecommunications