Optical constants of CDGM - LAF (Lanthanum flint)
H-LAF10LA
Wavelength:
µm
(0.302–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.93178403λ^2}{λ^2-0.00997340769}+\frac{0.189897276λ^2}{λ^2-0.0368891042}+\frac{1.09736515λ^2}{λ^2-77.2777489}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 1.87e-06 1.68e-08 -3.95e-11 5.95e-07 4.28e-10 0.194
nd: 1.788000
Vd: 47.491731
glass_code: 788475
glass_status: standard
density: 4.3 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 6.1e-06 K-1
- temperature_range: 20 300 °C
coefficient: 7.7e-06 K-1
dPgF: -0.0097
climatic_resistance: 1.0
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets