Optical constants of CDGM - LAK (Lanthanum crown)
H-LAK7A
Wavelength:
µm
(0.280 – 2.400)
Derived optical constants
n
k
logX
logY
eV
Dispersion formula
$$n^2=2.87982167-0.0147537347λ^{2}+0.0188595645λ^{-2}+0.000746887433λ^{-4}-6.23723325\text{×}10^{-05}λ^{-6}+3.88098485\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false λ_is_vacuum: false temperature: 20.0 °C coefficients_of_thermal_dispersion: 2.45e-06 1.45e-08 -7.86e-11 2.61e-07 4.57e-10 0.292 n_d: 1.713004 V_d: 53.868142 glass_code: 713538 glass_status: standard density: 3.74 g/cm3 coefficient_of_thermal_expansion_1: 5.5e-06 K-1 coefficient_of_thermal_expansion_2: 7.3e-06 K-1 ΔP_gF: -0.0119 climatic_resistance: 1.0
References
CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)