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809/81 nm BrightLine® single-band bandpass filter

Part Number: FF02-809/81-25

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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: FF02-809/81  FF02  809/81
809/81 nm BrightLine® single-band bandpass filter
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.
Part NumberSizePrice1Stock StatusQuantity
FF02-809/81-2525 mm x 3.5 mm$305In StockAdd To Cart
FF02-809/81-25-STR25 mm threaded ring for Sutter Lambda filter wheel$325Ships in 2 daysAdd To Cart
FF02-809/81-23.3-D23.3 mm x 2.0 mm
(unmounted)
$305Ships 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 - 50.8mm

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
Transmission Band 1Tavg > 93% 768.5 – 849.5 nm
Center Wavelength 1809 nm
Guaranteed Minimum Bandwidth 181 nm
FWHM Bandwidth 1 (nominal)88.4 nm
Blocking Band 1ODavg > 1 200 – 400 nm
Blocking Band 2ODavg > 2 400 – 545 nm
Blocking Band 3ODavg > 5 545 – 671 nm
Blocking Band 4ODavg >10 671 – 746.5 nm
Blocking Band 5ODavg > 3.5 757.5 – 757.5 nm
Blocking Band 6ODavg > 5 869.5 – 925 nm
Blocking Band 7ODavg > 2 925 – 1100 nm

General Filter Specifications
SpecificationValue
Angle of Incidence0 ± 5 degrees
Cone Half-angle7 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.

Physical Filter Specifications (applies to standard sized parts; contact us regarding other sizes)
SpecificationValue
Transverse Dimensions (Diameter)25 mm
Transverse Tolerance (mounted)+ 0.0 / – 0.1 mm
Filter Thickness (Mounted)3.5 mm
Filter Thickness Tolerance (Mounted)± 0.1 mm
Clear Aperture≥ 22 mm
Scratch-Dig60-40
Substrate Thickness (unmounted)2.0 mm
Substrate Thickness Tolerance (unmounted)± 0.1 mm
OrientationArrow on ring indicates preferred direction of propagation of light

Complementary Set Filters

FF01-708_75.png

708/75 nm BrightLine® single-band bandpass filter

• Tavg > 93% 671 – 746 nm
• Center Wavelength of 708 nm and GMBW of 75 nm
• FWHM of 82.9 nm


Custom sizing available in less than a week (sizing fee applies).
Part # FF01-708/75-25
$355
(Non-US pricing info)



FF757-Di01.png

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

• Dichroic Beamsplitter with edge at 757 nm
• Ravg > 98% 450 – 746 nm
• Tavg > 93% 768 – 1100 nm
• Flatness / RWE: Standard Epi-fluorescence


Custom sizing available in less than a week (sizing fee applies).
Part # FF757-Di01-25x36
$255
(Non-US pricing info)


Adjacent Bandpass Filters

FF01-800_12.png

800/12 nm BrightLine® single-band bandpass filter

• Tavg > 93% 794 – 806 nm
• Center Wavelength of 800 nm and GMBW of 12 nm
• FWHM of 19.9 nm


Custom sizing available in less than a week (sizing fee applies).
Part # FF01-800/12-25
$405
(Non-US pricing info)



FF01-810_10.png

810/10 nm BrightLine® single-band bandpass filter

• Tavg > 90% 805 – 815 nm
• Center Wavelength of 810 nm and GMBW of 10 nm
• FWHM of 20.2 nm


Custom sizing available in less than a week (sizing fee applies).
Part # FF01-810/10-25
$355
(Non-US pricing info)



FF01-819_44.png

819/44 nm BrightLine® single-band bandpass filter

• Tavg > 90% 797 – 841 nm
• Center Wavelength of 819 nm and GMBW of 44 nm
• FWHM of 58.6 nm


Custom sizing available in less than a week (sizing fee applies).
Part # FF01-819/44-25
$355
(Non-US pricing info)


Edge Filters

FF01-937_LP.png

937 nm blocking edge BrightLine® long-pass filter

• Filter with 50% edge at 945 nm
• Tavg > 93% 950 – 2500 nm


Custom sizing available in less than a week (sizing fee applies).
Part # FF01-937/LP-25
$455
(Non-US pricing info)



FF01-750_SP.png

750 nm blocking edge BrightLine® multiphoton short-pass emission filter

• Filter with 50% edge at 727 nm
• Tavg > 90% 380 – 720 nm


Custom sizing available in less than a week (sizing fee applies).
Part # FF01-750/SP-25
$925
(Non-US pricing info)


Dichroic Beamsplitters

FF875-Di01.png

875 nm edge BrightLine® multiphoton single-edge dichroic beamsplitter

• Dichroic Beamsplitter with edge at 875 nm
• Ravg > 98% 350 – 857.5 nm
• Tavg > 93% 892.5 – 1600 nm
• Flatness / RWE: Laser


Custom sizing available in less than a week (sizing fee applies).
Part # FF875-Di01-25x36
$565
(Non-US pricing info)


[x]
US domestic pricing only. If you are ordering from outside the US, please contact your nearest regional distributor for the correct list price.
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
Working with Optical DensityTables to describe the relationship between OD and transmission with tips for quickly calculating OD

809/81 FF02-809/81 FF02 Bandpass Single-Band FF02-809/81-25 FF02-809/81-23.3-D FF02-809/81-25-STR

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