Filters

Filters
  • Spectrofilter
  • Bandpass , longpass, shortpass
  • Notch
  • Dichroic
  • Neutral density
  • Cut off
  • Fluorescence
  • Laser line

Each type of filter is used in different applications where specific spectral characteristics of light need to be controlled or isolated.

  1. Bandpass Filters:
    • Allow light within a specific range of wavelengths (the “band”) to pass through.
    • Block or attenuate light outside this range.
    • Useful for isolating specific spectral features or signals.
    • Applications include spectroscopy, fluorescence microscopy, and optical communication.
  2. Longpass Filters:
    • Transmit light with longer wavelengths while blocking shorter wavelengths.
    • Typically used to remove shorter-wavelength components from a light source.
    • Applications include blocking UV light in photography, isolating fluorescence emissions in microscopy, and separating excitation and emission light in spectroscopy.
  3. Shortpass Filters:
    • Transmit light with shorter wavelengths while blocking longer wavelengths.
    • Used to remove longer-wavelength components from a light source.
    • Applications include blocking infrared (IR) light in optical communication, isolating specific absorption bands in colorimetry, and removing unwanted background signals in fluorescence imaging.
  4. Notch Filters:
    • Block a narrow range of wavelengths while transmitting others.
  5. Dichroic Filters:
    • Reflect or transmit specific wavelengths based on interference effects.
  6. Neutral Density Filters:
    • Attenuate light across the entire spectrum evenly, reducing intensity without altering spectral characteristics.

YREMOptics has the capability to tailor the design according to the specific requirements of customers across various wavelength bands.