Optical constants of CDGM - LAF (Lanthanum flint)
D-LAF53
Wavelength:
µm
(0.280 – 2.400)
Derived optical constants
n
k
logX
logY
eV
Dispersion formula
$$n^2=2.97237085-0.0132859996λ^{2}+0.0235602874λ^{-2}+0.000319211658λ^{-4}+1.70425085\text{×}10^{-05}λ^{-6}-8.96802291\text{×}10^{-08}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false λ_is_vacuum: false temperature: 20.0 °C coefficients_of_thermal_dispersion: 7.67e-06 2.36e-08 -1.95e-10 6.35e-07 3.67e-10 0.208 n_d: 1.743306 V_d: 49.335808 glass_code: 743493 glass_status: standard density: 4.26 g/cm3 coefficient_of_thermal_expansion_1: 5.6e-06 K-1 coefficient_of_thermal_expansion_2: 7.2e-06 K-1 ΔP_gF: -0.01 climatic_resistance: 1.0
References
CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)