Optical constants of CDGM - ZLAF (Dense lanthanum flint)
D-ZLAF50
Wavelength:
µm
(0.330 – 2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=3.17013467-0.0130614687λ^{2}+0.0284367701λ^{-2}+0.000413884621λ^{-4}+2.91645398\text{×}10^{-05}λ^{-6}-3.26598959\text{×}10^{-07}λ^{-8}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 4.59e-06 1.77e-08 -4.18e-11 8.47e-07 3.91e-10 0.15
nd: 1.803373
Vd: 45.526021
glass_code: 803455
density: 4.89 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 6.2e-06 K-1
- temperature_range: 20 300 °C
coefficient: 7.5e-06 K-1
dPgF: -0.0105
climatic_resistance: 1.0
References
CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)