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442 nm RazorEdge® ultrasteep long-pass edge filter

Part Number: LP02-442RS-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 > 93% 451.8 – 996.1 nm
Edge Wavelength 1447.6 nm
Blocking Band 1ODabs > 6 441.6 nm
Blocking Band 2ODavg > 6 356 – 441.6 nm (typical)
Transition Width (nm)8.8 nm
Transition Width (cm-1)444 cm-1
Edge Steepness (%)0.5%
Edge Steepness (nm)2.2 nm
Edge Steepness (cm-1)112.7 cm-1

General Filter Specifications
Laser Wavelength 1441.6 nm
Angle of Incidence0 ± 2 degrees
Cone Half-angle5 degrees
Optical Damage Rating0.5 J/cm2 @ 266 nm (10 ns pulse width), 1 J/cm2 @ 532 nm (10 ns pulse width)
Filter Effective Index1.86 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 Dimensions 2 (Diameter)50 mm
Transverse Tolerance (mounted)+ 0.0 / – 0.1 mm
Filter Thickness (Mounted)3.5 mm
Filter Thickness Tolerance (Mounted)± 0.1 mm
Clear Aperture≥ 22 mm
Clear Aperture 2≥ 45 mm
Substrate TypeFused Silica
Substrate Thickness (unmounted)2.0 mm
Substrate Thickness Tolerance (unmounted)± 0.1 mm
OrientationArrow on ring indicates preferred direction of propagation of light

Revised Filter


442 nm RazorEdge® ultrasteep long-pass edge filter

• Laser Wavelength = 441.6 nm
• 224 cm-1 transition
• Tavg > 93% 447.3 – 996.1 nm

Custom sizing available in less than a week (sizing fee applies).
Part # LP02-442RU-25
(Non-US pricing info)

US domestic pricing only. If you are ordering from outside the US, please contact your nearest regional distributor for the correct list price.

LP02-442RS 442RS

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