Optical constants of CDGM - ZLAF (Dense lanthanum flint)
D-ZLAF61
Wavelength:
µm
(0.340 – 2.400)
Derived optical constants
n
k
logX
logY
eV
Dispersion formula
$$n^2=3.23113634-0.0129344158λ^{2}+0.0306465184λ^{-2}+0.0006186837λ^{-4}+1.99460431\text{×}10^{-05}λ^{-6}+9.30145697\text{×}10^{-07}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false λ_is_vacuum: false temperature: 20.0 °C coefficients_of_thermal_dispersion: 4.75e-06 1.72e-08 -5.45e-12 5.42e-07 3.22e-10 0.287 n_d: 1.822412 V_d: 42.722851 glass_code: 822427 density: 4.92 g/cm3 coefficient_of_thermal_expansion_1: 6.6e-06 K-1 coefficient_of_thermal_expansion_2: 8.5e-06 K-1 ΔP_gF: -0.0069 climatic_resistance: 1.0
References
CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)