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442/514/647 nm Yokogawa emission filter

Part Number: Em01-R442/514/647-25

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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.
Optical Specifications
Transmission Band 1Tavg > 90% 458 – 497 nm
Center Wavelength 1477.5 nm
Guaranteed Minimum Bandwidth 139 nm
FWHM Bandwidth 1 (nominal)51.7 nm
Transmission Band 2Tavg > 90% 529 – 620 nm
Center Wavelength 2574.5 nm
Guaranteed Minimum Bandwidth 291 nm
FWHM Bandwidth 2 (nominal)103.9 nm
Transmission Band 3Tavg > 90% 667 – 750 nm
Center Wavelength 3708.5 nm
Guaranteed Minimum Bandwidth 383 nm
FWHM Bandwidth 3 (nominal)98.1 nm
Blocking Band 1ODabs > 6 405 nm
Blocking Band 2ODabs > 6 442 nm
Blocking Band 3ODabs > 6 514 nm
Blocking Band 4ODabs > 6 638 – 647 nm

General Filter Specifications
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 Index1.81 Understanding ‘Effective Index of Refraction’ neff

Physical Filter Specifications (applies to standard sized parts; contact us regarding other sizes)
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≥ 80%
Substrate Thickness (unmounted)2.0 mm
Substrate Thickness Tolerance (unmounted)± 0.1 mm
OrientationArrow on ring indicates preferred direction of propagation of light

Tech Note
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
Laser Scanning/Spinning Disk Confocal MicroscopyAn overview of confocal microscopy techniques and applications, including solutions from Semrock and additional learning resources.

R442/514/647 Em01-R442/514/647 Em01-R442/514/647-25

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