Optical constants of CDGM - ZLAF (Dense lanthanum flint)
H-ZLAF76
Wavelength:
µm
(0.360 – 2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=3.29759774-0.0171679311λ^{2}+0.0386912114λ^{-2}+0.00268188761λ^{-4}-0.00020390322λ^{-6}+2.43325022\text{×}10^{-05}λ^{-8}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: -8.76e-07 1.45e-08 -5.38e-11 7.77e-07 8.1e-10 0.291
nd: 1.850136
Vd: 30.060435
glass_code: 850301
density: 3.98 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 6.8e-06 K-1
- temperature_range: 20 300 °C
coefficient: 8.3e-06 K-1
dPgF: 0.005
climatic_resistance: 1.0
References
CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)