Optical constants of CDGM - LAF (Lanthanum flint)
D-LAF79
Wavelength:
µm
(0.340 – 2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.9216709-0.016405602λ^{2}+0.024564777λ^{-2}+0.0010630152λ^{-4}-3.3184678\text{×}10^{-05}λ^{-6}+4.2899849\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_absolute: false wavelength_vacuum: false temperature: 20.0 °C nd: 1.730774 Vd: 40.525060 glass_code: 731405 density: 3.21 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 9e-06 K-1 - temperature_range: 20 300 °C coefficient: 1.11e-05 K-1 dPgF: -0.0041 climatic_resistance: 3.0
References
CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)