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442-10 NNF Iridian Narrow Notch Filter for Spectroscopy

442-10 NNF Iridian Narrow Notch Filter for Spectroscopy
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442-10 NNF Iridian Narrow Notch Filter for Spectroscopy
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  • Model: Iridian 442 NNF S
Iridian Spectral Technologies Iridian Spectral Technologies
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Thin Film Narrow Notch Filter for Spectroscopic applications   

442-10 NNF   

Notch filters are designed to block a narrow range of wavelengths while allowing high transmittance in the passband. The deep blocking at the excitation laser line (OD > 6) delivers more signal with less background noise.

In spectroscopy and fluorescence applications, a notch filter usefully blocks the laser light.

Iridian notch filters are manufactured to achieve one of the narrowest blocking ranges available. Their sputtered hard dielectric coatings ensure superior performance, reliability and cost-effectiveness when compared to holographic notch filters.

Specifications
CWL - Centre Wavelength (nm) 442
Blocking Level (OD) > 6
Transmittance Band (nm) 354 to 587 (except CWL)
Transmittance (%) > 90
50% Width (nm) 10
Angle of Incidence 0°
Outer Diameter of ½" or 1" optics (mm) 12.5 +0/-0.1 or 25 +0/-0.2
Clear Aperture of ½" or 1" optics (mm) 8 or 21
Thickness (mm) 3 ±0.1
Ring mounted Yes
Scratch / Dig 60/40
 

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