Optical constants of OHARA - LAH (Lanthanum, high-index)
S-LAH58
Wavelength:
µm
(0.32–2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.78764964λ^2}{λ^2-0.00847378536}+\frac{0.6526356λ^2}{λ^2-0.0313126408}+\frac{1.79914564λ^2}{λ^2-132.788001}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 25.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 2.37e-06 1.28e-08 -3.08e-11 6.33e-07 5.04e-10 0.248 nd: 1.882997 Vd: 40.765107 glass_code: 883408 density: 5.52 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 6.6e-06 K-1 - temperature_range: 20 300 °C coefficient: 7.8e-06 K-1 dPgF: -0.0088 climatic_resistance: 1.0 acid_resistance: 2.2 phosphate_resistance: 1.0
Comments
Recommended
References
OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets