UltrasteepLongpass Filter Φ25mm Laser Wavelength=488nm | GU OPTICS

UltrasteepLongpass Filter Φ25mm Laser Wavelength=488nm | GU OPTICS

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Home  Products  Ultrasteep Long Pass Filter  208698

UltrasteepLongpass Filter Φ25mm Laser Wavelength=488nm

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UltrasteepLongpass Filter Φ25mm Laser Wavelength=488nm

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Product No. 208698

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Parameters Spectrum Curve Related Products Description

Dia Φ25mm

Laser Wavelength 488nm

Transmission Band Tavg＞93%@491.2-1100.8nm

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 ≥22mm

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.

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UltrasteepLongpass Filter Φ25mm Laser Wavelength=830nm

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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