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594 nm EdgeBasic™ best-value long-pass edge filter

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EdgeBasic filters offer an ideal combination of performance and value for applications including Raman spectroscopy and fluorescence imaging and measurements. They offer exceptional laser-line blocking and high transmission for Raman applications that do not require measuring the smallest possible Raman shifts and when cost is an issue.

Note on spectral plots:
In the past, each shipment has included a spectral plot for every filter and every lot code in the shipment. In an effort to be more eco-friendly, we will no longer be including these plots with each shipment. If you require spectral plot data, please see here for more information.

Optical Specifications
Transmission BandTavg > 93% 610.9 – 900 nm
Laser Wavelength594 nm
Laser Wavelength, high594.3 nm
Laser Wavelength, low593.5 nm
Edge Wavelength607 nm
Blocking BandODabs > 6 474.8 – 594.3 nm
ODavg > 5 200 – 275 nm (by design)
ODavg > 5 275 – 474.8 nm
Transition Width14.9
411 cm-1

General Specifications
Angle of Incidence0 ± 2 °
Cone Half-angle5 °
Filter Effective Index1.78 Understanding 'Effective Index of Refraction' neff
Optical Damage RatingNot tested

Physical Specifications (for standard parts - please contact us for custom sizes)
Size23.3 x 2.0 mm
25 x 3.5 mm
Transverse Dimensions, Diameter25 mm
Transverse Tolerance, Mounted+ 0.0 / - 0.1 mm
Filter Thickness, Mounted3.5 mm
Filter Thickness Tolerance, Mounted± 0.1 mm
Clear Aperture≥ 22 mm
Surface Quality (Scratch-Dig)60-40
Substrate Thickness2.0 mm
Substrate TypeLow-autofluorescence optical quality glass
OrientationArrow on ring indicates preferred direction of propagation of light


  • Unmounted
  • Size: 23.3 x 2.0 mm


  • Mounted
  • Size: 25 x 3.5 mm


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Optical Density

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Semrock Spectral Plot Info

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