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340/26 nm BrightLine® single-band bandpass filter

Part Number: FF01-340/26-25

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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: FF01-340/26  FF01  340/26
340/26 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
FF01-340/26-2525 mm x 5.0 mm$305In StockAdd To Cart
FF01-340/26-25-STR25 mm threaded ring for Sutter Lambda filter wheel$325Ships in 2 daysAdd To Cart
FF01-340/26-3232 mm x 5.0 mm$500Ships in 2 daysAdd To Cart
FF01-340/26-21.8-D21.8 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 > 75% 327 – 353 nm
Center Wavelength 1340 nm
Guaranteed Minimum Bandwidth 126 nm
FWHM Bandwidth 1 (nominal)30.2 nm
Blocking Band 1ODavg > 5 200 – 317 nm
Blocking Band 2ODavg > 5 362 – 467 nm
Blocking Band 3ODavg > 10 467 – 556 nm (Design specification - measurements are noise-floor limited)
Blocking Band 4ODavg > 5 556 – 750 nm
Blocking Band 5ODavg > 2.5 750 – 925 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.
Filter Effective Index2.1 Understanding ‘Effective Index of Refraction’ neff

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)5.0 mm
Filter Thickness Tolerance (Mounted)± 0.1 mm
Clear Aperture≥ 21 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

FF01-387_11.png

387/11 nm BrightLine® single-band bandpass filter

• Tavg > 90% 381.5 – 392.5 nm
• Center Wavelength of 387 nm and GMBW of 11 nm
• FWHM of 14.8 nm


Custom sizing available in less than a week (sizing fee applies).
Part # FF01-387/11-25
$305
(Non-US pricing info)



FF01-510_84.png

510/84 nm BrightLine® single-band bandpass filter

• Tavg > 93% 468 – 552 nm
• Center Wavelength of 510 nm and GMBW of 84 nm
• FWHM of 90 nm


Custom sizing available in less than a week (sizing fee applies).
Part # FF01-510/84-25
$355
(Non-US pricing info)



FF409-Di03.png

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

• Dichroic Beamsplitter with edge at 409 nm
• Ravg > 98% 327 – 404 nm
• Tavg > 93% 415 - 950 nm
• Flatness / RWE: Standard Epi-fluorescence


Custom sizing available in less than a week (sizing fee applies).
Part # FF409-Di03-25x36
$255
(Non-US pricing info)


Adjacent Bandpass Filters

FF01-340_12.png

340/12 nm BrightLine® single-band bandpass filter

• Tavg > 75% 334 – 346 nm
• Center Wavelength of 340 nm and GMBW of 12 nm
• FWHM of 17.9 nm


Custom sizing available in less than a week (sizing fee applies).
Part # FF01-340/12-25
$405
(Non-US pricing info)



FF01-355_40.png

355/40 nm BrightLine® single-band bandpass filter

• Tavg > 80% 335 – 375 nm
• Center Wavelength of 355 nm and GMBW of 40 nm
• FWHM of 46.3 nm


Custom sizing available in less than a week (sizing fee applies).
Part # FF01-355/40-25
$305
(Non-US pricing info)


Edge Filters

FF01-311_SP.png

311 nm blocking edge BrightLine® short-pass filter

• Filter with 50% edge at 304 nm
• Tavg > 70% 250 – 300 nm


Custom sizing available in less than a week (sizing fee applies).
Part # FF01-311/SP-25
$455
(Non-US pricing info)



BLP01-355R.png

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

• Filter with 50% edge at 361 nm
• 687 cm-1 transition
• Tavg > 93% from 364.9 – 900 nm


Custom sizing available in less than a week (sizing fee applies).
Part # BLP01-355R-25
$405
(Non-US pricing info)


Dichroic Beamsplitters

FF310-Di01.png

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

• Dichroic Beamsplitter with edge at 310 nm
• Ravg > 98% 255 – 295 nm
• Tavg > 90% 315 – 600 nm
• Flatness / RWE: Standard Epi-fluorescence


Custom sizing available in less than a week (sizing fee applies).
Part # FF310-Di01-25x36
$435
(Non-US pricing info)



FF365-Di01.png

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

• Dichroic Beamsplitter with edge at 365 nm
• Ravg > 94% 230 – 360 nm
• Tavg > 90% 370 – 508 nm
• Flatness / RWE: Standard Epi-fluorescence


Custom sizing available in less than a week (sizing fee applies).
Part # FF365-Di01-25x36
$495
(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

340/26 FF01-340/26 FF01 Bandpass Single-Band FF01-340/26-25 FF01-340/26-32 FF01-340/26-21.8-D FF01-340/26-25-STR

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