Optical constants of CDGM - ZLAF (Dense lanthanum flint)
H-ZLAF69
Wavelength:
µm
(0.290 – 2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=3.2148109-0.012992517λ^{2}+0.029243707λ^{-2}+0.00018800218λ^{-4}+5.7106547\text{×}10^{-05}λ^{-6}-1.9571482\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 1.51e-06 1.83e-08 -1.08e-10 5.27e-07 6.39e-10 0.24
nd: 1.816001
Vd: 46.569210
glass_code: 816465
density: 5.01 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 6.4e-06 K-1
- temperature_range: 20 300 °C
coefficient: 7.8e-06 K-1
dPgF: -0.0108
climatic_resistance: 1.0
References
CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)