Characteristic introduction of right angle Dispersing prism for different materials
1.UV fused quartz right-angle Dispersing prism
If Dispersing prism with higher transmittance in UV band or lower thermal expansion coefficient is required, the right-angle Dispersing prism of UV fused quartz can be selected.Ultraviolet grade fused quartz has a high transmittance in deep ultraviolet and almost no laser-induced fluorescence, making it an ideal choice for applications ranging from ultraviolet to near infrared.
2.N-BK7 right angle Dispersing prism
N-BK7 right-angle Dispersing prism can be selected if additional advantages of fused quartz are not required.N-BK7 has excellent transmittance in visible and near infrared parts of the spectrum.In addition, N-BK7 is a viable option for UV applications with wavelengths as low as 350 nm.
3.Calcium Fluoride Right Angle Dispersing Prism
Calcium fluoride right-angle Dispersing prism can be selected for Dispersing prism requiring high transmittance in the wavelength range from 180 nm to 8 M.Calcium fluoride has a low refractive index, ranging from 1.35 to 1.51 in the wavelength range from 180 nm to 8 m, and also has a very high laser damage threshold.Calcium fluoride is also chemically inert and has superior hardness compared with fluorides such as barium fluoride, magnesium fluoride and lithium fluoride.
4.Zinc selenide right-angle Dispersing prism
Zinc selenide is an ideal optical material for use in the range of 600 nm to 16 m and is characterized by low absorption (including red light in visible light and good heat shock resistance).Zinc selenide Dispersing prism is well suited for use in carbon dioxide lasers operating at 10.6 m, including carbon dioxide lasers aligned with helium-neon lasers.
5.Germanium right-angle Dispersing prism
Germanium is suitable for infrared applications due to its wide transmission range (2 - 16m) and opacity in the visible spectrum.Germanium right-angle Dispersing prism is inert to air, water, bases and acids (except nitric acid).The transmittance of germanium is greatly affected by temperature.Germanium is almost opaque at 100 C, while it is completely opaque at 200 C.
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