Optical constants of CDGM - LAF (Lanthanum flint)
H-LAF52
Wavelength:
µm
(0.320 – 2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=3.10868845-0.0135809895λ^{2}+0.027901619λ^{-2}+0.000460094924λ^{-4}+3.20811469\text{×}10^{-05}λ^{-6}-2.81458925\text{×}10^{-07}λ^{-8}$$Conditions & Spec sheet
n_absolute: false wavelength_vacuum: false temperature: 20.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 7.56e-06 1.95e-08 -5.14e-11 6.79e-07 7.1e-10 0.233 nd: 1.785901 Vd: 44.206711 glass_code: 786442 density: 4.39 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 5.9e-06 K-1 - temperature_range: 20 300 °C coefficient: 7.2e-06 K-1 dPgF: -0.0082 climatic_resistance: 1.0
References
CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)