Precision Flat 100mm Optical Glass Windows 0.35um Germanium Ir Window

Optical glass N-BK7 10-100mm 0.35-2μm λ/10 Precision Flat Windows

N-BK7 High-Precision Windows are available in Ø1/2", Ø1", 25 mm x 36 mm, and Ø2" sizes. They are available uncoated for the 350 nm - 2.0 μm range or with one of our three low-loss standard broadband antireflection (AR) coatings deposited on both surfaces: -A (350 - 700 nm), -B (650 - 1050 nm), or -C (1050 - 1700 nm). While uncoated windows have typical losses of about 4% per surface, the AR coatings reduce this to Ravg < 0.5%. These AR coatings provide good performance for angles of incidence (AOI) between 0° and 30°.

N-BK7 provides excellent transmission in the visible and near infrared portions of the spectrum. It is typically chosen whenever the additional benefits of UV fused silica (i.e., good transmission further into the UV and a lower coefficient of thermal expansion) are not necessary.

offers flat windows fabricated from N-BK7, UV Fused Silica, Sapphire, Calcium Fluoride, Magnesium Fluoride, Potassium Bromide, Infrasil, Zinc Selenide, Silicon, Germanium, or Barium Fluoride. Our laser windows have a wavelength-specific AR coating centered around commonly used laser wavelengths and an optional wedge, while our precision windows are offered with or without a broadband AR coating. For more information on these substrates,

Map Optics Technology provides a variety of flat Windows with no coating and anti-reflection coating substrates.

• Available Uncoated or with One of Three Broadband AR Coatings
• • 350 - 700 nm (-A Coating Designation)
  • 650 - 1050 nm (-B Coating Designation)
  • 1050 - 1700 nm (-C Coating Designation)

Coating parameters

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