Steep Long Pass Filter Φ12.5mm Laser Wavelength=632.8nm | GU OPTICS
Steep Long Pass Filter Φ12.5mm Laser Wavelength=632.8nm

Steep Long Pass Filter Φ12.5mm Laser Wavelength=632.8nm

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Product No. 208664

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Dia Φ12.5mm
Laser Wavelength 632.8nm
Edge Steepness (%) 0.5
Edge Steepness(1) 3.2nm
Edge Steepness(2) 78.6cm^-1
Transition Width (1) 6.3nm
Transition Width(2) 156cm^-1
Edge Wavelength 637.7nm
Transmission Band Tavg>93%@641-1427.4nm
Blocking Band1 ODabs>6@632.8 nm
Blocking Band2 ODavg>6@513-632.8nm (typical)
Material UV Fused Silica
Diameter Tolerance +0.0/-0.1mm
Mount Thickness 3.5mm
Substrate Thickness 2.0mm
Thickness Tolerance ±0.1mm
Surface Quality 60-40
AOI 0±2°
Clear Aperture ≥10mm
Laser Damage Threshold 0.5 J/cm²@266 nm (10 ns pulse width); 1 J/cm²@532 nm (10 ns pulse width)
Note Arrow on ring indicates preferred direction of propagation of light.
Grand Unified Optics provides two versions of 12.5mm and 25mm packaged and unpackaged steep long-pass filter standards with a wavelength of 488nm-1064nm laser wavelength. The filter has a high laser damage threshold, The characteristics of deep cut-off depth and steep transition from reflection to transmission are widely used in microscopic imaging, Raman spectroscopy, biochemical analysis instruments, life sciences, education and scientific research and other related fields. We can also offer custom coatings according to your requirements.
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