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731/137 nm BrightLine® single-band bandpass filter

Part Number: FF01-731/137-25

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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: FF01-731/137  FF01  731/137
731/137 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
FF01-731/137-2525 mm x 3.5 mm$405In StockAdd 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 > 90% 662.5 – 799.5 nm
Center Wavelength 1731 nm
GMBW 1137 nm
FWHM 1 (nominal)145.1 nm
Blocking Band 1Nominal blocking data is represented by the ASCII spectrum

General Filter Specifications
SpecificationValue
Filter Effective Index1.74 Understanding ‘Effective Index of Refraction’ neff
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+ 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)1.05 mm
Substrate Thickness Tolerance (Unmounted)± 0.1 mm
OrientationArrow on ring indicates preferred direction of propagation of light

Adjacent Bandpass Filters

FF01-725_40.png

725/40 nm BrightLine® single-band bandpass filter

• Tavg > 90% 705 – 745 nm
• Center Wavelength of 725 nm and GMBW of 40 nm
• FWHM of 48 nm


Custom sizing available in less than a week (sizing fee applies).
Part # FF01-725/40-25
$355
(Non-US pricing info)



FF01-732_68.png

732/68 nm BrightLine® single-band bandpass filter

• Tavg > 90% 705 – 760 nm
• Center Wavelength of 732 nm and GMBW of 68 nm
• FWHM of 75.6 nm


Custom sizing available in less than a week (sizing fee applies).
Part # FF01-732/68-25
$405
(Non-US pricing info)



FF01-736_128.png

736/128 nm BrightLine® single-band bandpass filter

• Tavg > 90% 672 – 800 nm
• Center Wavelength of 736 nm and GMBW of 128 nm
• FWHM of 137.4 nm


Custom sizing available in less than a week (sizing fee applies).
Part # FF01-736/128-25
$355
(Non-US pricing info)


Edge Filters

BLP01-830R.png

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

• Filter with 50% edge at 846 nm
• 293.9 cm-1 transition
• Tavg > 93% from 853.2 – 1600 nm


Custom sizing available in less than a week (sizing fee applies).
Part # BLP01-830R-25
$355
(Non-US pricing info)



FF01-650_SP.png

650 nm blocking edge BrightLine® short-pass filter

• Filter with 50% edge at 638 nm
• Tavg > 85% 360 – 634 nm


Custom sizing available in less than a week (sizing fee applies).
Part # FF01-650/SP-25
$355
(Non-US pricing info)


Dichroic Beamsplitters

Di03-R635.png

635 nm laser BrightLine® single-edge super-resolution / TIRF dichroic beamsplitter

• Laser Dichroic Beamsplitter with edge at 655.8 nm
• Rabs > 94% 632.8 – 647.1 nm
• Ravg > 90% 350 – 632.8 nm 
• Tavg > 93% 658.8 – 1200 nm
• Flatness / RWE: Super-resolution / TIRF


Custom sizing available in less than a week (sizing fee applies).
Part # Di03-R635-t1-25x36
$445
(Non-US pricing info)



Di03-R785.png

785 nm laser BrightLine® single-edge super-resolution / TIRF dichroic beamsplitter

• Laser Dichroic Beamsplitter with edge at 800 nm
• Rabs > 94% 780 – 790 nm
• Ravg > 90% 350 – 780 nm
• Tavg > 93% 804.3 – 1600 nm
• Flatness / RWE: Super-resolution / TIRF


Custom sizing available in less than a week (sizing fee applies).
Part # Di03-R785-t1-25x36
$545
(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

731/137 FF01-731/137 FF01 Bandpass Single-Band FF01-731/137-25

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