MGF2 by Generic IR

Standard Unknown Environmentally Friendly

MGF2 by Generic IR 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 Birefringent 1.377744 106.217612
MGF2-E Generic Birefringent 1.389557 104.857428
K-FIR100UV Sumita 1.4139 101.0
K-FIR100UV(M) Sumita 1.41268 100.7
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
CAFK95 Sumita 1.43425 95.0
K-CaFK95 Sumita 1.43425 95.0
Similar Glasses (Generic IR)
Glass Manufacturer nd Vd Compare
LIF Generic IR 1.392146 97.294682
CAF2 Generic IR 1.433849 94.995854
SRF2 Generic IR 1.437925 91.593259
BAF2 Generic IR 1.474478 81.607872
IRG9 Generic IR 1.486056 81.251965
F_SILICA Generic IR 1.458464 67.821433
BEO Generic IR 1.718619 93.251706
IRG15 Generic IR 1.534275 55.700357
IRGN6 Generic IR 1.589096 56.33564
SAPPHIRE Generic IR 1.768234 72.237215
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