Optical constants of CDGM - ZLAF (Dense lanthanum flint)
H-ZLAF68N
Wavelength:
µm
(0.340–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.49455025λ^2}{λ^2-109.762523}+\frac{2.07574257λ^2}{λ^2-0.010404077}+\frac{0.361138143λ^2}{λ^2-0.041262142}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 20.0 °C thermal_dispersion: - type: "Schott formula" coefficients: -9.92e-09 1.31e-08 -2.62e-11 7.34e-07 7.89e-10 0.237 nd: 1.883000 Vd: 39.218200 glass_code: 883392 density: 5.17 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 5.8e-06 K-1 - temperature_range: 20 300 °C coefficient: 8.6e-06 K-1 dPgF: -0.006 climatic_resistance: 1.0
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets