Optical constants of CDGM - LAK (Lanthanum crown)
H-LAK2A
Wavelength:
µm
(0.310 – 2.400)
Derived optical constants
n
k
logX
logY
eV
Dispersion formula
$$n^2=2.80801074-0.0109758888λ^{2}+0.0197813052λ^{-2}+0.000143229802λ^{-4}+2.39192838\text{×}10^{-05}λ^{-6}-7.82772539\text{×}10^{-07}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false λ_is_vacuum: false temperature: 20.0 °C coefficients_of_thermal_dispersion: -5.27e-06 1.89e-08 -6.19e-11 5.63e-07 8.12e-10 0.135 n_d: 1.692114 V_d: 54.570492 glass_code: 692545 density: 3.94 g/cm3 coefficient_of_thermal_expansion_1: 8e-06 K-1 coefficient_of_thermal_expansion_2: 9.7e-06 K-1 ΔP_gF: -0.0059 climatic_resistance: 2.0
References
CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)