Optical constants of OHARA - LAH (Lanthanum, high-index)
S-LAH52
Wavelength:
µm
(0.33–2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.85390925λ^2}{λ^2-0.00955320687}+\frac{0.297925555λ^2}{λ^2-0.039381685}+\frac{1.39382086λ^2}{λ^2-102.706848}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 25.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 5.34e-06 1.23e-08 6.91e-12 7.5e-07 8.12e-10 0.219 nd: 1.799516 Vd: 42.225007 glass_code: 800422 density: 4.41 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 6e-06 K-1 - temperature_range: 20 300 °C coefficient: 7.3e-06 K-1 dPgF: -0.006 climatic_resistance: 1.0 acid_resistance: 51.2 phosphate_resistance: 2.0
Comments
Recommended
References
OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets