Optical constants of OHARA - LAH (Lanthanum, high-index)
S-LAH93
Wavelength:
µm
(0.360–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{2.17884378λ^2}{λ^2-0.0115760879}+\frac{0.325508683λ^2}{λ^2-0.0495982503}+\frac{1.70608646λ^2}{λ^2-128.91358}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 25.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 2.48e-06 9.67e-09 -3.51e-12 8.57e-07 9.77e-10 0.258 nd: 1.905250 Vd: 35.036826 density: 4.83 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 7e-06 K-1 climatic_resistance: 1.0 acid_resistance: 4.0 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