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Dichroic Filters

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45° Reflective Dichroic Color Filters 45° Reflective Dichroic Color Filters
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
  • Reflects Stated Color While Transmitting Remaining Visible Spectrum
  • Ideal for Color Separation Applications
  • Precision N-BK7 Substrates
Dichroic Shortpass Filters Dichroic Shortpass Filters
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
  • Sharp Cut-Off Wavelength
  • Broad Transmission and Reflection Ranges
  • Available in a Range of Common Sizes
Dichroic Longpass Filters Dichroic Longpass Filters
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
  • Ideal for Fluorescence or Multispectral Imaging
  • Sharp Cut-On Wavelength
  • Broad Transmission and Reflection Ranges
Fluorescence Dichroic Filters Fluorescence Dichroic Filters
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
Additive and Subtractive Dichroic Color Filters Additive and Subtractive Dichroic Color Filters
  • High Saturation Dichroic Type
  • Matrix of Sizes and Sets
  • Precision Glass Substrate
TECHSPEC® Low GDD Dichroic Shortpass Ultrafast Filters Low GDD Dichroic Shortpass Ultrafast Filters
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
New
  • Reduced Thickness for Limited GDD
  • Broad Transmission and Reflection Ranges 
  • Ideal for Ultrafast Laser Applications
  • Controlled GDD Specification Using In-House Metrology
Dichroic Laser Beam Combiners Dichroic Laser Beam Combiners
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
  • Polarization Insensitive
  • Hard Sputtered Coating
  • Multiple Sizes Available
High Performance Fluorescence Dichroic Filters High Performance Fluorescence Dichroic Filters
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
  • Improved Flatness, Transmitted Wavefront, and Surface Quality
  • Ideal for Fluorescence Microscopy or High Magnification Imaging Applications
  • Most Popular Cut-On Wavelengths of Fluorescence and Longpass Dichroic Filters
  • Standard Fluorescence Dichroic Filters are also available
Extreme Ultraviolet (EUV) Dichroic Filters Extreme Ultraviolet (EUV) Dichroic Filters
  • Separates EUV from the NIR Laser Source in High Harmonic Generation
  • Designed for High Damage Thresholds
  • Supports Applications from 10 – 40nm
  • Available from Stock
  • No Minimum Order Quantities, No Coating Lot Charges

Dichroic Filters, also known as Dichroic Mirrors or Dichromatic Mirrors, are coated with thin-film dielectric coatings that transmit wavelengths within a specified transmission band and reflect all other wavelengths. By reflecting rejected wavelengths instead of absorbing them, dichroic filters can be used with more intense light sources than absorptive filters. Dichroic Filters are generally used at a 45° angle of incidence to reflect rejected light at 90° to the transmitted light. Dichroic Filters are used in applications such as fluorescence microscopy and flow cytometry to selectively transmit light towards detectors.

Edmund Optics offers a range of Dichroic Filters, including 45° Reflective Dichroic Color Filters that reflect one color while transmitting all other visible wavelengths, Dichroic Shortpass Filters and Dichroic Longpass Filters designed for the visible or near-infrared (NIR), and Fluorescence Dichroic Filters with cut-on wavelengths at common fluorophore emission wavelengths. For more information on our optical filter products, visit our Optical Filters Selection Guide.

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