Optical constants of OHARA - LAH (Lanthanum, high-index)
S-LAH55V
Wavelength:
µm
(0.330–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.97025325λ^2}{λ^2-0.00991088134}+\frac{0.30489414λ^2}{λ^2-0.0383202295}+\frac{1.39214665λ^2}{λ^2-97.7785249}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 25.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 2.24e-06 9.97e-09 -2.68e-12 6.8e-07 7.1e-10 0.217 nd: 1.834807 Vd: 42.725324 density: 4.73 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 6.2e-06 K-1 dPgF: -0.0075 climatic_resistance: 4.0 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