Optical constants of OHARA - LAH (Lanthanum, high-index)
S-LAH53
Wavelength:
µm
(0.34–2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.91811619λ^2}{λ^2-0.0102147684}+\frac{0.253724399λ^2}{λ^2-0.0433176011}+\frac{1.39473885λ^2}{λ^2-101.938021}$$Conditions & Spec sheet
n_absolute: false wavelength_vacuum: false temperature: 25.0 ℃ thermal_dispersion: - type: "Schott formula" coefficients: 5.52e-06 1.63e-08 2.71e-12 8.93e-07 5.67e-10 0.188 nd: 1.806098 Vd: 40.925996 glass_code: 806409 density: 4.43 g/cm3 thermal_expansion: - temperature_range: -30 70 ℃ coefficient: 5.9e-06 K-1 - temperature_range: 20 300 ℃ coefficient: 7e-06 K-1 dPgF: -0.0052 climatic_resistance: 1.0 acid_resistance: 4.2 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