ALN-E by Generic Birefringent

Standard Unknown Environmentally Friendly

ALN-E by Generic Birefringent is a standard optical glass. It transmits from 0.22 to 5.00 µm with an nd of 2.200116 and a Vd of 44.15554.

Refractive Index vs Wavelength
Refractive Index Calculator
Valid range: 0.22–5.0 µm
dn/dλ vs Wavelength
dn/dλ Calculator
Valid range: 0.22–5.0 µm
Abbe Number Calculator
Transmission vs Wavelength

No transmission data available.

Transmission Calculator
Valid wavelength range: 0.220–5.000 µm
Optical Properties
Refractive Index (nd) 2.200116
Abbe Number (Vd) 44.15554
Dispersion Formula Sellmeier 4
Wavelength Range 0.22 — 5.0 µm
$$n(\lambda) = \sqrt{3.0729 + \frac{1.6173\,\lambda^2}{\lambda^2 - 0.030485} + \frac{4.139\,\lambda^2}{\lambda^2 - 225.901}}$$
Thermal Properties
TCE -30/70°C (10-6/K) —
TCE 100/300°C (10-6/K) —
Thermal Conductivity (W/mK) —
Heat Capacity (J/gK) —
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[0 + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right] \Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
Density (g/cm³) —
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: Handbook of Optics Vol. II

Similar Glasses (Other Manufacturers)
Glass Manufacturer nd Vd Compare
ALN Generic IR 2.154291 50.733102
TAFD75-W Hoya 2.102 23.39
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TAFD65 Hoya 2.0509 26.94
K-PSFn214P Sumita 2.144 17.8
K-PSFn214 Sumita 2.14355 17.8
K-PSFn215 Sumita 2.154 17.2
K-PSFn214P(M) Sumita 2.13919 17.7
K-PSFn214(M) Sumita 2.13909 17.7
K-PSFn173 Sumita 2.1478 17.3
Similar Glasses (Generic Birefringent)
Glass Manufacturer nd Vd Compare
ALN Generic Birefringent 2.154291 50.733102
LINBO3-E Generic Birefringent 2.214539 20.455966
LINBO3 Generic Birefringent 2.300158 18.711921
TEO2 Generic Birefringent 2.274935 16.22277
PBMOO4-E Generic Birefringent 2.277375 15.77258
CAMOO4-E Generic Birefringent 2.002336 26.628162
CAMOO4 Generic Birefringent 1.992539 28.832428
CAWO4-E Generic Birefringent 1.937211 33.304949
BATIO3-E Generic Birefringent 2.380271 13.963107
CAWO4 Generic Birefringent 1.920414 34.953592
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