Optical constants of OHARA - LAH (Lanthanum, high-index)
S-LAH71
Wavelength:
µm
(0.36–2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.98280031λ^2}{λ^2-0.0118987456}+\frac{0.31675845λ^2}{λ^2-0.0527156001}+\frac{2.44472646λ^2}{λ^2-213.220697}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 25.0 °C thermal_dispersion: - type: "Schott formula" coefficients: -3.71e-07 9.01e-09 -2.99e-11 9.14e-07 1.11e-09 0.257 nd: 1.850259 Vd: 32.270120 glass_code: 850323 density: 4.36 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 7.7e-06 K-1 - temperature_range: 20 300 °C coefficient: 9.1e-06 K-1 dPgF: 0.0036 climatic_resistance: 2.0 acid_resistance: 2.0 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