Optical constants of CDGM - ZLAF (Dense lanthanum flint)
H-ZLAF50D
Wavelength:
µm
(0.320 – 2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=3.17122941-0.0123809285λ^{2}+0.0303628745λ^{-2}-0.000417232894λ^{-4}+0.000142630066λ^{-6}-6.197583\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
nd: 1.804005
Vd: 46.590950
glass_code: 804466
density: 4.52 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 6.2e-06 K-1
- temperature_range: 20 300 °C
coefficient: 7.9e-06 K-1
dPgF: -0.0085
climatic_resistance: 1.0
References
CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)