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781/23 nm BrightLine® single-band bandpass filter
781/23 nm BrightLine® single-band bandpass filter - Image 2

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781/23 nm BrightLine® single-band bandpass filter

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Individual fluorescence bandpass filters that have been optimized for use in a variety of fluorescence instruments. All thin-film, hard-coated construction for unsurpassed performance and reliability.

Optical Specifications
Transmission BandTavg > 93% 769 – 792 nm
Transmission Wavelength781 nm
Blocking BandODavg > 3 1050 – ­1100 nm
ODavg > 5 300 – 748 nm
ODavg > 5 810 – 1050 nm
ODavg > 8 820 – 860 nm (Design specification – measurements are noise-floor limited)


General Specifications
Angle of Incidence0 ± 5 °
Cone Half-angle7 °
Optical Damage RatingTesting has proven to show no signs of degradation when exposed to at least 6.0 W of power from an unfiltered xenon arc lamp over a 25 mm diameter (corresponding to 1.2 W/cm²) for over 500 hrs.


Physical Specifications (for standard parts - please contact us for custom sizes)
Transverse Dimensions, Diameter25 mm
Filter Thickness, Mounted3.5 mm
Filter Thickness Tolerance, Mounted± 0.1 mm
Filter Thickness, Unmounted2.0 mm
Filter Thickness Tolerance, Unmounted± 0.1 mm
Clear Aperture≥ 22 mm
Surface Quality (Scratch-Dig)60-40
OrientationArrow on ring is preferred direction of propagation of light



Transmission

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Optical Density

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Semrock Spectral Plot Info
FF01-781_23Measured

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