DUV Excimer Grade CaF₂

The DUV excimer laser-grade calcium fluoride (CaF₂) crystals grown by UM OPTICS exhibit outstanding performance in the deep ultraviolet (DUV) band, featuring high UV transmittance—particularly excellent light transmission at 193nm and 248nm excimer laser wavelengths—with extremely low light energy loss. The material demonstrates high laser durability, capable of withstanding long-term irradiation by high-energy lasers without easy damage. Meanwhile, its high refractive index homogeneity and low stress birefringence make it suitable for processing into components like lenses and prisms, ensuring stable beam polarization, minimizing optical distortion, and guaranteeing imaging and transmission accuracy. It serves as a key optical material in semiconductor lithography, laser precision machining, and other advanced technology fields.

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