840/12 nm BrightLine^® single-band bandpass filter

Semrock Part Number: FF01-840/12-25

IDEX Part Number: FL-004460 /

Optical Specifications	Value
Transmission Band 1	Tavg > 93% 834 – 846 nm
Blocking Band 1	ODavg > 5 300 814 nm
Blocking Band 2	ODavg > 6 490 - 650 nm
Blocking Band 3	ODavg > 8 650 - 790 nm (Design specification - measurements are noise-floor limited)
Blocking Band 4	OD > 3.5 817 nm
Blocking Band 5	ODavg > 5 868 - 1050 nm
Center Wavelength 1	840 nm
Guaranteed Minimum Bandwidth 1	12 nm
FWHM Bandwidth 1 (nominal)	21.1 nm
General Filter Specifications	Value
Angle of Incidence	0 ± 5 degrees
Cone Half-angle	7 degrees
Optical Damage Rating	Testing 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 hours.
Physical Filter Specifications	Value
Transverse Dimensions (diameter)	25 mm
Transverse Tolerance	+ 0.0 / – 0.1 mm
Filter Thickness (mounted)	5.0 mm
Filter Thickness Tolerance (mounted)	± 0.1 mm
Clear Aperture	≥ 21 mm
Scratch-Dig	60-40
Filter Thickness (unmounted)	2.0 mm
Filter Thickness Tolerance (unmounted)	± 0.1 mm
Orientation	Arrow on ring indicates preferred direction of propagation of light

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Available on

FF01-835/70-25

FL-004646 / 0

T_avg > 93% 800 – 870 nm
Center Wavelength of 835 nm and GMBW of 70 nm
FWHM of 74 nm

Available on

FF01-842/56-25

FL-003939 / 0

T_avg > 90% 820 – 865 nm
Center Wavelength of 842 nm and GMBW of 56 nm
FWHM of 64.9 nm

Available on

FF01-850/10-25

FL-004015 / 0

T_avg > 93% 845 – 855 nm
Center Wavelength of 850 nm and GMBW of 10 nm
FWHM of 18.7 nm

Available on

FF01-937/LP-25

FL-009071 / 0

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

Available on

BSP01-785R-25

FL-008521 / 0

Laser Wavelength = 785 nm
Filter 50% edge at 765.5 nm
313 cm^-1 transition
T_avg > 80% 350 – 400 nm
T_avg > 93% 400 – 758.2 nm

Available on

FF801-Di02-25x36

FL-007164 / 0

Dichroic Beamsplitter with edge at 801 nm
R_avg > 98% 450 – 790 nm
T_avg > 93% 813.5 – 1100 nm
Flatness / RWE: Standard Epi-fluorescence

Available on

FF875-Di01-25x36

FL-007131 / 0

Dichroic Beamsplitter with edge at 875 nm
R_avg > 98% 350 – 857.5 nm
T_avg > 93% 892.5 – 1600 nm
T_{avg p-pol} > 93% 892.5 – 1600 nm
T_{avg s-pol} > 93% 892.5 – 1600 nm
Flatness / RWE: Laser

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Topic	Description
Cleaning Optical Filters	Instructions for cleaning hard coated optical filters
Filter Reliability	Compares 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 Density	Tables to describe the relationship between OD and transmission with tips for quickly calculating OD

Optical Specifications: Value
Transmission Band 1: Tavg > 93% 834 – 846 nm
Blocking Band 1: ODavg > 5 300 814 nm
Blocking Band 2: ODavg > 6 490 - 650 nm
Blocking Band 3: ODavg > 8 650 - 790 nm (Design specification - measurements are noise-floor limited)
Blocking Band 4: OD > 3.5 817 nm
Blocking Band 5: ODavg > 5 868 - 1050 nm
Center Wavelength 1: 840 nm
Guaranteed Minimum Bandwidth 1: 12 nm
FWHM Bandwidth 1 (nominal): 21.1 nm
General Filter Specifications: Value
Angle of Incidence: 0 ± 5 degrees
Cone Half-angle: 7 degrees
Optical Damage Rating: Testing 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 hours.
Physical Filter Specifications: Value
Transverse Dimensions (diameter): 25 mm
Transverse Tolerance: + 0.0 / – 0.1 mm
Filter Thickness (mounted): 5.0 mm
Filter Thickness Tolerance (mounted): ± 0.1 mm
Clear Aperture: ≥ 21 mm
Scratch-Dig: 60-40
Filter Thickness (unmounted): 2.0 mm
Filter Thickness Tolerance (unmounted): ± 0.1 mm
Orientation: Arrow on ring indicates preferred direction of propagation of light