Optical constants of CDGM - LAK (Lanthanum crown)
H-LAK59A
Wavelength:
µm
(0.310 – 2.400)
Derived optical constants
n
k
logX
logY
eV
Dispersion formula
$$n^2=2.79972754-0.00873189032λ^{2}+0.0230159159λ^{-2}-0.000850193825λ^{-4}+0.000152864586λ^{-6}-6.91746601\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false λ_is_vacuum: false temperature: 20.0 °C coefficients_of_thermal_dispersion: -5.15e-06 2.29e-08 -1.61e-10 5.25e-07 -6.63e-10 0.169 n_d: 1.690999 V_d: 54.859424 glass_code: 691548 density: 3.94 g/cm3 coefficient_of_thermal_expansion_1: 8.2e-06 K-1 coefficient_of_thermal_expansion_2: 9.6e-06 K-1 ΔP_gF: -0.0052 climatic_resistance: 3.0
References
CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)