Optical constants of CDGM - LAK (Lanthanum crown)
H-LAK12
Wavelength:
µm
(0.280 – 2.400)
Derived optical constants
n
k
logX
logY
eV
Dispersion formula
$$n^2=2.82673774-0.0136335725λ^{2}+0.0190474212λ^{-2}+0.000204685509λ^{-4}+8.81193052\text{×}10^{-06}λ^{-6}-2.15937861\text{×}10^{-08}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false λ_is_vacuum: false temperature: 20.0 °C coefficients_of_thermal_dispersion: 8.75e-08 1.9e-08 -8.47e-11 4.12e-07 -1.87e-10 0.224 n_d: 1.696801 V_d: 56.199825 glass_code: 697562 density: 3.71 g/cm3 coefficient_of_thermal_expansion_1: 6.4e-06 K-1 coefficient_of_thermal_expansion_2: 8e-06 K-1 ΔP_gF: -0.01 climatic_resistance: 1.0
References
CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)