IRG9 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) | 1.486056 |
|---|---|
| Abbe Number (Vd) | 81.251965 |
| Dispersion Formula | Herzberger |
| Wavelength Range | 0.365 — 3.303 µm |
$$L = \frac{1}{\lambda^2 - 0.028}
n(\lambda) = 1.47847 + 0.00272848\,L - 4.05081 \times 10^{-5}\,L^2 - 0.00176595\,\lambda^2 - 5.70475 \times 10^{-6}\,\lambda^4 - 3.64225 \times 10^{-7}\,\lambda^6$$
Thermal Properties
| TCE -30/70°C (10-6/K) | 16.1 |
|---|---|
| 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) | 3.63 |
|---|---|
| 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: Schott Spec Sheet
Similar Glasses (Other Manufacturers)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| FK52 | Schott | 1.486052 | 81.802215 | |
| A86-82 | Corning | 1.486052 | 81.814538 | |
| K-PFK80(M) | Sumita | 1.49533 | 80.8 | |
| D-FK61-25 | CDGM | 1.49653 | 81.531772 | |
| D-FK61A-25 | CDGM | 1.49665 | 81.549116 | |
| S-FPL51Y | Ohara | 1.497003 | 81.138165 | |
| MP-FCD1-M20 | Hoya | 1.4969 | 81.51 | |
| MC-FCD1-M20 | Hoya | 1.4969 | 81.51 | |
| K-PFK80 | Sumita | 1.497 | 81.5 | |
| PFK80 | Sumita | 1.497 | 81.5 |
Similar Glasses (Generic IR)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| BAF2 | Generic IR | 1.474478 | 81.607872 | |
| SRF2 | Generic IR | 1.437925 | 91.593259 | |
| F_SILICA | Generic IR | 1.458464 | 67.821433 | |
| CAF2 | Generic IR | 1.433849 | 94.995854 | |
| LIF | Generic IR | 1.392146 | 97.294682 | |
| IRG15 | Generic IR | 1.534275 | 55.700357 | |
| IRGN6 | Generic IR | 1.589096 | 56.33564 | |
| MGF2 | Generic IR | 1.377744 | 106.217612 | |
| BEO | Generic IR | 1.718619 | 93.251706 | |
| SPINEL | Generic IR | 1.716226 | 60.607355 |