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376/384/394/404/412.2/423.6/434.7/443.6/455/468/478 nm BrightLine® hendeca-band bandpass filter

Part Number: FF01-CH2O-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-CH2O  FF01  CH2O
376/384/394/404/412.2/423.6/434.7/443.6/455/468/478 nm BrightLine® hendeca-band bandpass filter
Semrock designed an 11-band bandpass filter optimized to capture the peaks of formaldehyde emission over the 380 – 480nm wavelength range to improve the fluorescence signal. Formaldehyde is an ideal chemical for use in laser-induced fluorescence (LIF) when excited at 355nm. Individual multiband fluorescence bandpass filters that utilize Semrock's patented single-substrate construction. These filters have extremely high transmission, steep and well-defined edges, and outstanding blocking between the passbands. All thin-film, hard-coated construction for unsurpassed performance and reliability.
Part NumberSizePrice1Stock StatusQuantity
FF01-CH2O-2525 mm x 5.0 mm$1,045In StockAdd To Cart

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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 1Tabs > 80% 376 nm
Center Wavelength 1376 nm
Guaranteed Minimum Bandwidth 1Transmission guaranteed for nominal wavelength only
FWHM Bandwidth 1 (nominal)4.7 nm (typical)
Transmission Band 2Tabs > 80% 384 nm
Center Wavelength 2384 nm
Guaranteed Minimum Bandwidth 2Transmission guaranteed for nominal wavelength only
FWHM Bandwidth 2 (nominal)3.9 nm (typical)
Transmission Band 3Tabs > 80% 394 nm
Center Wavelength 3394 nm
Guaranteed Minimum Bandwidth 3Transmission guaranteed for nominal wavelength only
FWHM Bandwidth 3 (nominal)3.8 nm (typical)
Transmission Band 4Tabs > 80% 404 nm
Center Wavelength 4404 nm
Guaranteed Minimum Bandwidth 4Transmission guaranteed for nominal wavelength only
FWHM Bandwidth 4 (nominal)4.2 nm (typical)
Transmission Band 5Tabs > 90% 412.2 nm
Center Wavelength 5412.2 nm
Guaranteed Minimum Bandwidth 5Transmission guaranteed for nominal wavelength only
FWHM Bandwidth 5 (nominal)4.0 nm (typical)
Transmission Band 6Tabs > 90% 423.6 nm
Center Wavelength 6423.6 nm
Guaranteed Minimum Bandwidth 6Transmission guaranteed for nominal wavelength only
FWHM Bandwidth 6 (nominal)4.0 nm (typical)
Transmission Band 7Tabs > 90% 434.6 nm
Center Wavelength 7434.6 nm
Guaranteed Minimum Bandwidth 7Transmission guaranteed for nominal wavelength only
FWHM Bandwidth 7 (nominal)4.0 nm (typical)
Transmission Band 8Tabs > 90% 443.5 nm
Center Wavelength 8443.5 nm
Guaranteed Minimum Bandwidth 8Transmission guaranteed for nominal wavelength only
FWHM Bandwidth 8 (nominal)3.6 nm (typical)
Transmission Band 9Tabs > 90% 455 nm
Center Wavelength 9455 nm
Guaranteed Minimum Bandwidth 9Transmission guaranteed for nominal wavelength only
FWHM Bandwidth 9 (nominal)4.8 nm (typical)
Transmission Band 10Tabs > 90% 468 nm
Center Wavelength 10468 nm
Guaranteed Minimum Bandwidth 10Transmission guaranteed for nominal wavelength only
FWHM Bandwidth 10 (nominal)4.3 nm (typical)
Transmission Band 11Tabs > 90% 478 nm
Center Wavelength 11478 nm
Guaranteed Minimum Bandwidth 11Transmission guaranteed for nominal wavelength only
FWHM Bandwidth 11 (nominal)3.7 nm (typical)
Blocking Band 1ODavg > 5 350 – 365 nm
Blocking Band 2ODavg > 1 365 – 490 nm (Excluding Passbands)
Blocking Band 3ODavg > 5 490 – 900 nm

General Filter Specifications
SpecificationValue
Angle of Incidence0 ± 2 degrees
Cone Half-angle0.5 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 Index1.97 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)3.5 mm
Substrate Thickness Tolerance (unmounted)± 0.1 mm
OrientationArrow on ring indicates preferred direction of propagation of 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
Working with Optical DensityTables to describe the relationship between OD and transmission with tips for quickly calculating OD
Multiband Filter Set TerminologyCompares benefits and drawbacks of full multiband, pinkel and sedat filter sets

CH2O Formaldehyde FF01-CH2O FF01 Bandpass Eleven-Band Hendeca-Band FF01-CH2O-25

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