Optical constants of OHARA - LAH (Lanthanum, high-index)
S-LAH64
Wavelength:
µm
(0.32–2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.83021453λ^2}{λ^2-0.0090482329}+\frac{0.29156359λ^2}{λ^2-0.0330756689}+\frac{1.28544024λ^2}{λ^2-89.3675501}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 25.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 3.03e-06 1.2e-08 -3.49e-11 4.09e-07 4.61e-10 0.277 nd: 1.788001 Vd: 47.368522 glass_code: 788474 density: 4.3 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 6.1e-06 K-1 - temperature_range: 20 300 °C coefficient: 7.4e-06 K-1 dPgF: -0.0089 climatic_resistance: 2.0 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