Optical constants of CDGM - LAF (Lanthanum flint)
H-LAF52
Wavelength:
µm
(0.302–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{0.225893751λ^2}{λ^2-0.0391551736}+\frac{1.88248028λ^2}{λ^2-0.0100951886}+\frac{1.11307009λ^2}{λ^2-85.0042906}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 20.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 7.32e-06 1.67e-08 -2.76e-11 7.23e-07 7.76e-10 0.219 nd: 1.785900 Vd: 44.187159 glass_code: 786442 density: 4.39 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 5.9e-06 K-1 - temperature_range: 20 300 °C coefficient: 7.2e-06 K-1 dPgF: -0.0083 climatic_resistance: 1.0
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets