Optical constants of OHARA - LAH (Lanthanum, high-index)
S-LAH79
Wavelength:
µm
(0.37–2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{2.32557148λ^2}{λ^2-0.0132895208}+\frac{0.507967133λ^2}{λ^2-0.0528335449}+\frac{2.43087198λ^2}{λ^2-161.122408}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 25.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 6.01e-06 1.31e-08 -3.15e-11 1.12e-06 1.27e-09 0.26 nd: 2.003300 Vd: 28.273280 density: 5.23 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 6e-06 K-1 - temperature_range: 20 300 °C coefficient: 7.1e-06 K-1 dPgF: 0.0023 climatic_resistance: 2.0 acid_resistance: 1.0 phosphate_resistance: 1.0
Comments
Recommended - High Index
References
OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets