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
$$n^2=2.98452959-0.0112966796λ^{2}+0.0309775151λ^{-2}+0.000431829146λ^{-4}+4.82383023\text{×}10^{-05}λ^{-6}+2.94612279\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: -2.04e-07 2.8e-08 -1.11e-10 6.56e-07 -8.41e-10 0.272
nd: 1.753671
Vd: 37.495125
glass_code: 754375
density: 3.71 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 7e-06 K-1
- temperature_range: 20 300 °C
coefficient: 8.4e-06 K-1
dPgF: -0.0013
climatic_resistance: 1.0
References
CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)