ALN by Generic IR
Standard
Unknown
Environmentally Friendly
Refractive Index vs Wavelength
Refractive Index Calculator
dn/dλ vs Wavelength
dn/dλ Calculator
Abbe Number Calculator
Transmission vs Wavelength
No transmission data available.
Optical Properties
| Refractive Index (nd) | 2.154291 |
|---|---|
| Abbe Number (Vd) | 50.733102 |
| Dispersion Formula | Sellmeier 4 |
| Wavelength Range | 0.22 — 5.0 µm |
$$n(\lambda) = \sqrt{3.1399 + \frac{1.3786\,\lambda^2}{\lambda^2 - 0.02941} + \frac{3.861\,\lambda^2}{\lambda^2 - 225.901}}$$
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 | |
|---|---|---|---|---|
| ALN | Generic Birefringent | 2.154291 | 50.733102 | |
| ALN-E | Generic Birefringent | 2.200116 | 44.15554 | |
| H-ZLAF96 | CDGM | 2.0509 | 26.985858 | |
| TAFD65 | Hoya | 2.0509 | 26.94 | |
| LASF35 | Schott | 2.02204 | 29.06 | |
| TAFD75-W | Hoya | 2.102 | 23.39 | |
| H-ZLAF91 | CDGM | 2.001 | 29.151347 | |
| REALVIEW_2.0 | Schott | 2.001017 | 29.14 | |
| S-LAH99 | Ohara | 2.001 | 29.139473 | |
| S-LAH99W | Ohara | 2.001 | 29.139473 |
Similar Glasses (Generic IR)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| IRG2 | Generic IR | 1.891717 | 29.896648 | |
| CLEARTRAN | Generic IR | 2.367877 | 15.613699 | |
| ZNS_VIS | Generic IR | 2.367356 | 15.554146 | |
| ZNS_BROAD | Generic IR | 2.367247 | 15.304568 | |
| CLRTR_OLD | Generic IR | 2.367678 | 15.282309 | |
| IRG3 | Generic IR | 1.844836 | 32.330322 | |
| ALON | Generic IR | 1.788917 | 58.204971 | |
| SRTIO3 | Generic IR | 2.408917 | 12.715169 | |
| MGO | Generic IR | 1.737505 | 53.505455 | |
| SAPPHIRE | Generic IR | 1.768234 | 72.237215 |