Optical constants of CDGM - LAF (Lanthanum flint)
H-LAFL5
Wavelength:
µm
(0.350 – 2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.26562517λ^2}{λ^2-102.654797}+\frac{1.8132477λ^2}{λ^2-0.011161487}+\frac{0.173525791λ^2}{λ^2-0.0541388764}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 20.0 ℃
thermal_dispersion:
- type: "Schott formula"
coefficients: -2.04e-07 2.8e-08 -1.11e-10 6.56e-07 -8.41e-10 0.272
nd: 1.753670
Vd: 37.491665
glass_code: 754375
density: 3.71 g/cm3
thermal_expansion:
- temperature_range: -30 70 ℃
coefficient: 7e-06 K-1
- temperature_range: 20 300 ℃
coefficient: 8.4e-06 K-1
dPgF: 0.0001
climatic_resistance: 1.0
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets