Optical constants of CDGM - LAF (Lanthanum flint)
H-LAF55
Wavelength:
µm
(0.350 – 2.400)
Derived optical constants
n
k
logX
logY
eV
Dispersion formula
$$n^2=3.01845855-0.0104580593λ^{2}+0.0288640175λ^{-2}+0.000697086524λ^{-4}+6.35741467\text{×}10^{-06}λ^{-6}+2.82444289\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false λ_is_vacuum: false temperature: 20.0 °C coefficients_of_thermal_dispersion: -2.5e-06 2.11e-08 -8.33e-11 7e-07 -1.49e-10 0.249 n_d: 1.762004 V_d: 40.106913 glass_code: 762401 density: 4.3 g/cm3 coefficient_of_thermal_expansion_1: 8.2e-06 K-1 coefficient_of_thermal_expansion_2: 9.5e-06 K-1 ΔP_gF: -0.004 climatic_resistance: 1.0
References
CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)