Optical constants of OHARA - LAH (Lanthanum, high-index)
S-LAH66
Wavelength:
µm
(0.31–2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.39280586λ^2}{λ^2-0.00608475118}+\frac{0.679577094λ^2}{λ^2-0.0233925351}+\frac{1.38702069λ^2}{λ^2-95.8354094}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 25.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 3.03e-06 1.36e-08 -3.27e-11 5e-07 6.02e-10 0.218 nd: 1.772499 Vd: 49.598371 glass_code: 773496 density: 4.23 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 6.2e-06 K-1 - temperature_range: 20 300 °C coefficient: 7.4e-06 K-1 dPgF: -0.0092 climatic_resistance: 1.0 acid_resistance: 51.2 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