Zinc selenide (ZnSe) lenses

Zinc selenide (ZnSe) lenses

Cutting / marking / engraving

Order ZnSe lenses/replacement lenses directly in our webshop

ZnSe Lenses

Our zinc selenide lenses for laser cutting and laser marking are made from high-quality material with the lowest absorption values. In combination with an anti-reflective coating, PLEIGER optics enable a high-power CO2 laser to be focused with excellent precision. For the highest laser powers above 4 kW, we offer a low-absorption AR/AR coating that minimizes thermal lensing.

PLEIGER optics made of silicon, germanium, ZnSe and ZnS are used in thermography, IR spectroscopy, night vision devices and target tracking. Our product range includes windows, spherical and aspherical ZnSe lenses as well as windows for broadband applications from NIR to FIR.

We manufacture our ZnSe lenses according to individual customer specifications. Typical products are meniscus lenses, plano-covex lenses and Brewster windows. On request, we can supply lenses including an AR/AR coating for a specific laser wavelength or for a broadband application.

ZnSe Lenses & Windows:
Standard AR/AR anti-reflective coating (*A < 0,20 %)
Low-absorption AR/AR anti-reflective coating (*A < 0,15 %)
Lenses Meniskuslinsen, Plan-konkav-Linsen, Konvex-konkav-Linsen
Windows Schutzfenster und Brewsterfenster
Material properties
Transmission range 0,5 – 22 µm
Refractive index @ 10,6 µm 2,4028
Refractive index inhomogeneity @ 10,6 µm 3 x 10-6
Thermo-optical coefficient @ 10,6 µm 611 x 10-6 K-1
Absorption coefficient @ 10,6 µm 5,0 x 10-4 cm-1

Other optical components

Silicon lenses
Silicon lenses
Germanium Lenses
Germanium Lenses
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