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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) | 1.612929 |
|---|---|
| Abbe Number (Vd) | 36.986002 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.365 — 1.014 µm |
$$n(\lambda) = \sqrt{2.53266 - 0.00773825\,\lambda^2 + 0.0231731\,\lambda^{-2} + 0.000409363\,\lambda^{-4} + 3.78047 \times 10^{-5}\,\lambda^{-6} + 1.03464 \times 10^{-6}\,\lambda^{-8}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | 10.1 |
|---|---|
| TCE 100/300°C (10-6/K) | 12.1 |
| Thermal Conductivity (W/mK) | 0.645 |
| Heat Capacity (J/gK) | 0.473 |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[-3.84 \times 10^{-6} + 2(1.63 \times 10^{-8})\,\Delta T + 3(-7.71 \times 10^{-11})\,\Delta T^2 + \frac{9.44 \times 10^{-7} + 2(8.73 \times 10^{-10})\,\Delta T}{\lambda - 0.251}\right]
\Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
| Density (g/cm³) | 3.5 |
|---|---|
| Relative Cost | 2.0 |
Mechanical Properties
| Young's Modulus (GPa) | 57.4 |
|---|---|
| Poisson's Ratio | 0.221 |
| Knoop Hardness (kgf/mm²) | 440.0 |
Chemical Resistance
| Climatic Resistance | 1 |
|---|---|
| Stain Resistance | — |
| Acid Resistance | — |
| Alkali Resistance | — |
| Phosphate Resistance | — |