Optical constants of CDGM - ZLAF (Dense lanthanum flint)
H-ZLAF78B
Wavelength:
µm
(0.350 – 2.400)
Derived optical constants
n
k
logX
logY
eV
Dispersion formula
$$n^2=3.49322693-0.0132987683λ^{2}+0.0400277433λ^{-2}+0.000823139853λ^{-4}+3.93075178\text{×}10^{-05}λ^{-6}+2.86901814\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false λ_is_vacuum: false temperature: 20.0 °C coefficients_of_thermal_dispersion: -1.22e-06 1.45e-08 -2.51e-11 1.18e-06 6.04e-10 0.13 n_d: 1.900696 V_d: 37.053564 glass_code: 901371 density: 4.95 g/cm3 coefficient_of_thermal_expansion_1: 6.8e-06 K-1 coefficient_of_thermal_expansion_2: 8.6e-06 K-1 ΔP_gF: -0.0043 climatic_resistance: 1.0
References
CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)