Optical constants of CDGM - LAF (Lanthanum flint)
H-LAF51
Wavelength:
µm
(0.340 – 2.400)
Derived optical constants
n
k
logX
logY
eV
Dispersion formula
$$n^2=2.82740564-0.0113834621λ^{2}+0.0217208712λ^{-2}+0.000385985738λ^{-4}+1.31857828\text{×}10^{-05}λ^{-6}+6.83783132\text{×}10^{-07}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false λ_is_vacuum: false temperature: 20.0 °C coefficients_of_thermal_dispersion: -2.02e-06 1.89e-08 -1.3e-10 4.46e-07 1.77e-10 0.281 n_d: 1.700000 V_d: 48.109868 glass_code: 700481 density: 3.82 g/cm3 coefficient_of_thermal_expansion_1: 8e-06 K-1 coefficient_of_thermal_expansion_2: 9.4e-06 K-1 ΔP_gF: -0.0038 climatic_resistance: 2.0
References
CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)