Optical constants of CDGM - LAK (Lanthanum crown)
H-LAK11
Wavelength:
µm
(0.290 – 2.400)
Derived optical constants
n
k
logX
logY
eV
Dispersion formula
$$n^2=2.71757958-0.00952801665λ^{2}+0.0196309871λ^{-2}-0.000237384298λ^{-4}+8.48314788\text{×}10^{-05}λ^{-6}-4.09640039\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false λ_is_vacuum: false temperature: 20.0 °C coefficients_of_thermal_dispersion: -1.34e-06 2.38e-08 -5.5e-11 4.75e-07 6.18e-11 0.228 n_d: 1.664613 V_d: 54.657841 glass_code: 665546 density: 4.02 g/cm3 coefficient_of_thermal_expansion_1: 7.2e-06 K-1 coefficient_of_thermal_expansion_2: 8.8e-06 K-1 ΔP_gF: -0.0005 climatic_resistance: 3.0
References
CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)