Doped Calcium Fluoride

Doped calcium fluoride (Eu:CaF2) is an inert and transparent material as one of the phosphors with effective excitation in the near ultraviolet range. The average light output is 24,000 photons * MeV-1, and the refractive index is similar to that of many photomultiplier Windows and photocoupled compounds. Eu:CaF2 emits a large fluorescent emission wavelength of 435nm, which is a good match for photocathode photomultiplier tubes. It is used in biomedical imaging, therapy, photonics, ultraviolet sensor, filtration, drug therapy, low-energy photon detection and other industries. As an optical crystal manufacturer, we can also customize optical crystals of different shapes and specifications for you according to your needs.

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	Dia(mm)	ThK(mm)	Shape	Transmission Range
	Screen Reset 3-200	Screen Reset 0.5-60	Screen Reset Customizable	Screen Reset 0.13-10μm
More+ Less	3-200	0.5-60	Customizable	0.13-10μm
Doped Calcium Fluoride，3-200mm Number：CaF2J001 Dia(mm)：3-200 ThK(mm)：0.5-60 Shape：Customizable Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Material：Calcium Fluorid（CaF2） Transmission Range：0.13-10μm Density(g/cm³)：3.18 REACH：Compliant ROHS：Compliant

Material Data
Optical Properties
Transmission Range	0.13-10μm
Transmittance	>94%@193nm-7.87μm
Refractive Index	1.4288@2.5μm 1.39908@5μm
Reflection Loss	5.4%@5μm(both surfaces)
Absorption Coefficienet	7.8×10-4@2.7μm
Structure	Cubic Crystal System
Cleavage Planes	<111>
Physical Properties
Density [g/cm3]	3.18
Melting Point [℃]	1420
Thermal Conductivity [W/(m×K)]	9.71 @ 293K
Thermal Expansion [10-6/K]	18.5 @ 273K
Knoop Hardness [kg/mm2]	158.3
Specific Heat Capacity [J/(kg×K)]	854
Dielectric Constant	6.76 @ 1 MHz
Young's Modulus (E) [GPa]	75.8
Shear Modulus(G) [GPa]	33.77
Bulk Modulus(K) [GPa]	82.71
Poisson Coefficient	0.26
Chemical Properties
Solubility / g/L	0.016g @ 20℃
Molecular Weight / g/mol	78.0748