MGF2 by Generic Birefringent

Standard Unknown Environmentally Friendly

MGF2 by Generic Birefringent is a standard optical glass. It transmits from 0.20 to 7.04 µm with an nd of 1.377744 and a Vd of 106.217612. It has medium thermal expansion (CTE of 9.4×10⁻⁶/K).

Refractive Index vs Wavelength
Refractive Index Calculator
Valid range: 0.2–7.04 µm
dn/dλ vs Wavelength
dn/dλ Calculator
Valid range: 0.2–7.04 µm
Abbe Number Calculator
Transmission vs Wavelength

No transmission data available.

Transmission Calculator
Valid wavelength range: 0.200–7.040 µm
Optical Properties
Refractive Index (nd) 1.377744
Abbe Number (Vd) 106.217612
Dispersion Formula Sellmeier
Wavelength Range 0.2 — 7.04 µm
$$n(\lambda) = \sqrt{1 + \frac{0.487551\,\lambda^2}{\lambda^2 - 0.00188218} + \frac{0.39875\,\lambda^2}{\lambda^2 - 0.00895189} + \frac{2.31204\,\lambda^2}{\lambda^2 - 566.136}}$$
Thermal Properties
TCE -30/70°C (10-6/K) 9.4
TCE 100/300°C (10-6/K) —
Thermal Conductivity (W/mK) —
Heat Capacity (J/gK) —
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[-2.5 \times 10^{-7} + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right] \Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
Density (g/cm³) 3.171
Relative Cost —
Mechanical Properties
Young's Modulus (GPa) —
Poisson's Ratio —
Knoop Hardness (kgf/mm²) —
Chemical Resistance
Climatic Resistance —
Stain Resistance —
Acid Resistance —
Alkali Resistance —
Phosphate Resistance —
Notes

source: M.J. Dodge, "Refractive Properties of Magnesium Flouride," Appl. Opt. 23

Similar Glasses (Other Manufacturers)
Glass Manufacturer nd Vd Compare
MGF2 Generic IR 1.377744 106.217612
K-FIR100UV Sumita 1.4139 101.0
K-FIR100UV(M) Sumita 1.41268 100.7
LIF Generic IR 1.392146 97.294682
K-FIR98UV Sumita 1.42537 97.8
K-FIR97UV Sumita 1.4258 97.4
LITHOTEC-CAF2 Schott 1.43385 95.23
K-CaFK95(M) Sumita 1.43312 95.0
CAF2 Generic IR 1.433849 94.995854
K-CaFK95 Sumita 1.43425 95.0
Similar Glasses (Generic Birefringent)
Glass Manufacturer nd Vd Compare
MGF2-E Generic Birefringent 1.389557 104.857428
LIYF4 Generic Birefringent 1.453776 93.549426
LIYF4-E Generic Birefringent 1.476472 88.935059
CALCITE-E Generic Birefringent 1.486494 79.064587
LAF3-E Generic Birefringent 1.596715 81.256833
KDP-E Generic Birefringent 1.468324 68.984949
LAF3 Generic Birefringent 1.604046 80.83154
QUARTZ Generic Birefringent 1.544296 70.132045
QUARTZ-E Generic Birefringent 1.553398 68.797763
ADP-E Generic Birefringent 1.478797 61.616939
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