UltrasteepLongpass Filter Φ12.5mm Laser Wavelength=488nm

UltrasteepLongpass Filter Φ12.5mm Laser Wavelength=488nm

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Product No. 208686

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Dia Φ12.5mm
Laser Wavelength 488nm
Transmission Band Tavg>93%@491.2-1100.8 nm
Edge Wavelength 489.1nm
Blocking Band1 ODabs>6@488 nm
Blocking Band2 ODavg>6@394-488 nm(typical)
Transition Width 2.4nm
Transition Width 102cm^-1
Edge Steepness (%) 0.2
Edge Steepness(2) 1.0nm
Edge Steepness(2) 40.9cm^-1
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 0.5J/cm2@266nm (10ns pulse width); 1J/cm2@532nm (10ns pulse width)
Note Arrow on ring indicates preferred direction of propagation of light.
Grand Unified Optics provides standard products of ultra-steep long-pass filter with a diameter of 12.5mm and 25mm in packaged and unpackaged versions and a wavelength of 488nm-1064nm laser wavelength. The filter has a high laser damage threshold. The characteristics of deep cut-off depth and ultra-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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