Optical constants of CDGM - LAF (Lanthanum flint)
D-LAF050
Wavelength:
µm
(0.290 – 2.400)
Derived optical constants
n
k
logX
logY
eV
Dispersion formula
$$n^2=3.0588612-0.014713037λ^{2}+0.023619508λ^{-2}+0.00067085861λ^{-4}-2.760135\text{×}10^{-05}λ^{-6}+2.1299817\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false λ_is_vacuum: false temperature: 20.0 °C coefficients_of_thermal_dispersion: 4.02e-06 1.48e-08 -2.59e-11 7.08e-07 1.19e-10 0.135 n_d: 1.768419 V_d: 49.290155 glass_code: 768493 density: 4.51 g/cm3 coefficient_of_thermal_expansion_1: 5.7e-06 K-1 coefficient_of_thermal_expansion_2: 7.4e-06 K-1 ΔP_gF: -0.0109 climatic_resistance: 1.0
References
CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)