Optical constants of CDGM - ZLAF (Dense lanthanum flint)
H-ZLAF90
Wavelength:
µm
(0.370 – 2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=3.81589583-0.0188810016λ^{2}+0.0545200672λ^{-2}+0.00508907678λ^{-4}-0.000444175735λ^{-6}+5.0454684\text{×}10^{-05}λ^{-8}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: -2.21e-06 1.4e-08 -4.36e-11 1.1e-06 1.62e-09 0.284
nd: 2.000689
Vd: 25.435062
density: 4.74 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 7e-06 K-1
- temperature_range: 20 300 °C
coefficient: 8.7e-06 K-1
dPgF: 0.0113
References
CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)