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660 nm edge BrightLine® single-edge standard epi-fluorescence dichroic beamsplitter

Part Number: FF660-Di02-25x36

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  • Your filter spectrum may differ slightly from the typical spectrum above, but is certified to meet the optical specifications noted below.
Semrock Optical Filter: FF660-Di02  FF660  Di02
660 nm edge BrightLine® single-edge standard epi-fluorescence dichroic beamsplitter
Semrock offers a wide range of dichroic beamsplitters that exhibit steep edges with very high reflection and transmission bands. This standard epi-fluorescence dichroic beamsplitter is optimized only for broadband light sources such as LEDs and metal halide lamps.
Part NumberSizePrice1Stock StatusQuantity
FF660-Di02-25x3625.2 mm x 35.6 mm x 1.1 mm
(unmounted)
$255In StockAdd To Cart
FF660-Di02-22x2922.0 mm x 29.0 mm x 1.1 mm
(unmounted)
$255Ships in 2 daysAdd To Cart
FF660-Di02-32x44-FX32 x 44 x 1.1 mm (corners cut for OFX cube)
(unmounted)
$400Ships in 2 daysAdd To Cart

Don’t see a size you need? Create your own custom sized part – available in less than a week.

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Custom Sizing Limits:
Diameter Range: 5mm - 50.8mm
Rectangular Dimensions: 5mm - 55mm

Substrate thickness/tolerance as listed on Specifications tab.
Dimensional tolerances are ±0.1mm for unhoused parts.

For sizes outside the limits listed above, please contact customer service at 1-866-SEMROCK



1) US domestic pricing only. If you are ordering from outside the US, please contact your nearest regional distributor for the correct list price.
Optical Specifications
SpecificationValue
Reflection Band 1Ravg > 98% 350 – 651 nm
Reflection Band 2Ravg > 98% 594 – 651 nm
Edge Wavelength 1660 nm
Transmission Band 1Tavg > 93% 669 – 950 nm
Transmission Band 2Tavg > 93% 669 – 726 nm

General Filter Specifications
SpecificationValue
Angle of Incidence45 ± 1.5 degrees
Cone Half-angle2 degrees
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.
SteepnessStandard
Filter Effective Index1.85 Understanding ‘Effective Index of Refraction’ neff
Flatness / RWE ClassificationStandard Epi-fluorescence
Reflected Wavefront Error>> 6λ P-V RWE @ 632.8 nm

Physical Filter Specifications (applies to standard sized parts; contact us regarding other sizes)
SpecificationValue
Transverse Dimensions (L x W)25.2 mm x 35.6 mm
Transverse Tolerance± 0.1 mm
Filter Thickness (unmounted)1.05 mm
Filter Thickness Tolerance (unmounted)± 0.05 mm
Clear Aperture≥ 80%
Scratch-Dig60-40
Substrate Thickness (unmounted)1.05 mm
Substrate Thickness Tolerance (unmounted)± 0.05 mm
OrientationReflective surface marked with part number - Orient in direction of incoming light

Tech Note
TopicDescription
Cleaning Optical FiltersInstructions for cleaning hard coated optical filters
Filter ReliabilityCompares the performance and reliability of hard coated filters to traditional soft-coated filters and provides information about the testing standards for Semrock filters
Flatness of Dichroic BeamsplittersDescribes the impact of non-flat dichroic beamsplitters on microscope image fidelity

660 Dichroic beamsplitter FF660 FF660-Di02 Single-edge FF660-Di02-25x36 FF660-Di02-22x29 FF660-Di02-32x44-FX

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