Optical constants of CDGM - ZLAF (Dense lanthanum flint)
H-ZLAF78B
Wavelength:
µm
(0.350 – 2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=3.49322693-0.0132987683λ^{2}+0.0400277433λ^{-2}+0.000823139853λ^{-4}+3.93075178\text{×}10^{-05}λ^{-6}+2.86901814\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: -1.22e-06 1.45e-08 -2.51e-11 1.18e-06 6.04e-10 0.13
nd: 1.900696
Vd: 37.053564
glass_code: 901371
density: 4.95 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 6.8e-06 K-1
- temperature_range: 20 300 °C
coefficient: 8.6e-06 K-1
dPgF: -0.0043
climatic_resistance: 1.0
References
CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)