Barium fluoride (BaF2) Plano-convex Lenses

Barium fluoride has high transmittance from 200nm-11um region. Although this property is similar to that of calcium fluoride, barium fluoride has better transmission beyond 10.0um and is more resistant to higher energy radiation. Barium fluoride is commonly used for applications requiring transmission in the ultraviolet region.

Barium fluoride plano-convex lens will focus light into a point and is often used to focus collimated light or collimated point sources.

The important parameters of a plano-convex lens are: size, focal length, design wavelength, finish, face accuracy, eccentricity, substrate material and other attributes. Suitable parameters of plano-convex lenses can be selected according to specific applications.

Nova can provide Barium Fluoride Plano-Convex Lenses with diameters from 2-300mm and thicknesses from 0.12-60mm (accuracy up to 20-10, 1/10L@633nm),coating AR, BBAR, AF or upon request.

Technical parameters of BaF2 Plano-Convex Lenses

Material properties of BaF2

Transmission curve

Barium fluoride (BaF2) has an optical transmittance of nearly 90% in the 200-9500nm.Moreover, barium fluoride can resist stronger high-energy radiation. However, the disadvantage of barium fluoride is its poor resistance to water. When exposed to water, significant degradation of performance occurs at 500°C, but it can be used in dry environments for applications up to 800°C.when handling optical components made of barium fluoride, gloves must always be worn and hands thoroughly washed after handling.

Typical size of BaF2 Plano-Convex Lenses