Optical Window with anti-reflection coating / WSQMA-50C2.3-P-400/450

These optical windows have high-quality and may be used when light is passed through the opposite side of the partition or in the vacuum chamber. Since the windows have anti-reflection coatings the transmittance is increased so they can be used as a window for laser irradiation windows and the observation of the sample.
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◦By anti-reflection coating with a dielectric multi-layer, it is reduced to less than 1% to 4% reflection loss of the glass surface.
◦Since we are using the high quality material, the image will not be distorted by the transmission of the glass, and the laser beam is not diffused.
◦When you insert an window perpendicular to the optical path of the laser, the angle of the transmitted beam will not be changed.
More Information
Catalog Code W3226
RoHS Yes
Download Product's Datasheet
Guide ▶Anti-reflection coatings are also available at your specified wavelength.
▶In addition to the products described on our website and in the catalog other sizes and wedged windows are available.
▶Please refer to here for Wavelength Characteristic Data (Reference Data, EXCEL file format).
Attention ▶When used at wavelengths other than the specified wavelength region, the loss of transmittance increases slightly.
▶When used in a large incident angle, there is a possibility that the transmittance decreases. Also available are anti-reflection coating to increase the transmittance at a particular angle of incidence.
MaterialSynthetic fused silica
Surface flatness
CoatingDielectric multi-layer coating
Incident angle
Surface Quality (Scratch-Dig)40−20
Clear aperture90% of the diameter
Wavelength Range400~450nm
Diameter φDφ50mm
Thickness t2.3mm
Wavelength range400~450nm
Laser Damage Threshold5J/cm2