Optical constants of CDGM - LAF (Lanthanum flint)
H-LAF53
Wavelength:
µm
(0.300–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.52005515λ^2}{λ^2-0.00746606502}+\frac{1.09140777λ^2}{λ^2-81.9422153}+\frac{0.452588708λ^2}{λ^2-0.0263954349}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 20.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 8.12e-06 1.8e-08 -3.55e-11 6.59e-07 7e-10 0.185 nd: 1.743300 Vd: 49.221808 glass_code: 743492 density: 4.16 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 5.5e-06 K-1 - temperature_range: 20 300 °C coefficient: 7.3e-06 K-1 dPgF: -0.009 climatic_resistance: 1.0
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets