Zinc Selenide - Lenses - Crystran

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Zinc Selenide (ZnSE) is the best material for infrared optics. However, the quality of ZnSE in China is very unpredictable.

Gallium Arsenide (GaAs) has a more consistent quality in China as a raw material.  However, it is not as good as ZnSe, but it always beats bad bad ZnSe.

For more zinc selenide lensinformation, please contact us. We will provide professional answers.

There are 2 types of ZnSe.

• CVD ZnSe (Chemical Vapor Deposition) is a process where the environment is maintained in a reactor to promote ZnSe crystal growth. 

• PVD ZnSe (Physical Vapor Deposition) is a process where ZnSe scraps are evaporated and then recombine into a solid.  PVD ZnSe has legitimate practical purposes, but Co2 laser optics is not one of them.

CVD ZnSe is only made in the USA.

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