HWS9 by CDGM
Standard
Rare
Environmentally Dangerous
Refractive Index vs Wavelength
Refractive Index Calculator
dn/dλ vs Wavelength
dn/dλ Calculator
Abbe Number Calculator
Transmission vs Wavelength
Transmission Calculator
Optical Properties
| Refractive Index (nd) | — |
|---|---|
| Abbe Number (Vd) | — |
| Dispersion Formula | Herzberger |
| Wavelength Range | 2.0 — 12.0 µm |
$$L = \frac{1}{\lambda^2 - 0.028}
n(\lambda) = 3.2987 + 0.303047\,L + 0.150428\,L^2 - 7.781 \times 10^{-5}\,\lambda^2 + 8.97439 \times 10^{-8}\,\lambda^4 - 3.70211 \times 10^{-10}\,\lambda^6$$
Thermal Properties
| TCE -30/70°C (10-6/K) | — |
|---|---|
| TCE 100/300°C (10-6/K) | — |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[0.0001061 + 2(1.824 \times 10^{-8})\,\Delta T + 3(-6.434 \times 10^{-10})\,\Delta T^2 + \frac{0.0002092 + 2(1.418 \times 10^{-8})\,\Delta T}{\lambda - 0.1904}\right]
\Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
| Density (g/cm³) | 5.4 |
|---|---|
| Relative Cost | 388.6 |
Mechanical Properties
| Young's Modulus (GPa) | — |
|---|---|
| Poisson's Ratio | — |
| Knoop Hardness (kgf/mm²) | 118.0 |
Chemical Resistance
| Climatic Resistance | — |
|---|---|
| Stain Resistance | — |
| Acid Resistance | — |
| Alkali Resistance | — |
| Phosphate Resistance | — |
Notes
Infrared optical glass