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MSE PRO Optical Windows

Optical Windows, one of the most fundamental components in optics, are used to separate the environments on both sides, such as isolating the internal and external parts of instruments, thereby protecting the internal components. Windows are basic optical elements, essentially optical flats, which do not alter the optical magnification and only affect the optical path length in the optical system.

The key parameters of windows include transmittance, surface accuracy, thickness, parallelism, substrate material, and other attributes, which can be selected according to specific application requirements.

MSE SUPPLIES offers a variety of standard precision and high-precision windows in various materials. For instance, for applications in the infrared spectral range, we provide Zinc Selenide (ZnSe) windows, Germanium (Ge) windows, Silicon (Si) windows, Barium Fluoride (BaF2) windows, Calcium Fluoride (CaF2) windows; for applications in the ultraviolet spectral range, we offer fused quartz windows and sapphire windows; and for applications in the visible spectrum, we provide K9 windows, among others. 

In addition, we could also provide laser windows and wedged laser windows with wavelength-specific anti-reflective coatings tailored to commonly utilized laser wavelengths. For bulk order or other customize optical windows according to specific requirements, please contact us immediately.

Flat Window Selection Recommend

Wavelength Range Substrate Material
180 nm-8.0 μm Calcium Fluoride (CaF2)
185 nm-2.1 μm UV Fused Silica
200 nm-5.0 μm Sapphire
200 nm-6.0 μm Magnesium Fluoride (MgF2)
250 nm-26 µm Potassium Bromide (KBr)
350 nm-2.0 μm N-BK7/H-K9L
600 nm-16 µm Zinc Selenide (ZnSe)
1.2-8.0 μm Silicon (Si)
1.9-16 μm Germanium (Ge)
2-5 μm Barium Fluoride (BaF2)



MSR PRO Uncoated Calcium Fluoride (CaF<sub>2</sub>) Flat Windows, Round Shape - MSE Supplies LLC

MSE PRO Uncoated Calcium Fluoride (CaF2) Flat Windows, Round Shape

$ 4900
MSR PRO Uncoated Calcium Fluoride (CaF<sub>2</sub>) Flat Windows, Round Shape - MSE Supplies LLC

MSE PRO Uncoated Magnesium Fluoride (MgF2) Flat Windows, Round Shape

$ 6995 Save $ 900
MSE PRO Uncoated Calcium Fluoride (CaF<sub>2</sub>) Flat Windows, Rectangle Shape - MSE Supplies LLC

MSE PRO Uncoated Calcium Fluoride (CaF2) Flat Windows, Rectangle Shape

$ 8995 Save $ 1100
MSR PRO Uncoated Calcium Fluoride (CaF<sub>2</sub>) Flat Windows, Round Shape - MSE Supplies LLC

MSE PRO H-K9L Flat Windows with AR Coating, Round Shape

$ 6595 Save $ 800
MSE PRO Germanium (Ge) Flat Windows, Round Shape - MSE Supplies LLC

MSE PRO Germanium (Ge) Flat Windows, Round Shape

$ 17795 Save $ 2200
MSE PRO Zinc Selenide (ZnSe) Flat Windows, Round Shape - MSE Supplies LLC

MSE PRO Zinc Selenide (ZnSe) Flat Windows, Round Shape

$ 13995 Save $ 1700
MSE PRO Zinc Sulfide (ZnS) Flat Windows, Round Shape - MSE Supplies LLC

MSE PRO Zinc Sulfide (ZnS) Flat Windows, Round Shape

$ 18395 Save $ 2300
MSR PRO Uncoated Calcium Fluoride (CaF<sub>2</sub>) Flat Windows, Round Shape - MSE Supplies LLC

MSE PRO Uncoated H-K9L Flat Windows, Round Shape

$ 4895 Save $ 600
MSE PRO UV Fused Silica (UVFS) Flat Windows, Round Shape - MSE Supplies LLC

MSE PRO UV Fused Silica (UVFS) Flat Windows, Round Shape

$ 9395 Save $ 1200
MSE PRO Uncoated Silicon (Si) Flat Windows, Round Shape - MSE Supplies LLC

MSE PRO Uncoated Silicon (Si) Flat Windows, Round Shape

$ 11595 Save $ 1400
MSR PRO Uncoated Calcium Fluoride (CaF<sub>2</sub>) Flat Windows, Round Shape - MSE Supplies LLC

MSE PRO Uncoated Sapphire Flat Windows, Round Shape

$ 9995 Save $ 1200