Optical constants of CDGM - ZLAF (Dense lanthanum flint)
H-ZLAF75A
Wavelength:
µm
(0.360 – 2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=3.48751324-0.0149732265λ^{2}+0.0432288095λ^{-2}+0.00210592206λ^{-4}-0.000100284898λ^{-6}+1.62326633\text{×}10^{-05}λ^{-8}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: -2.09e-06 1.28e-08 -7.59e-11 8.54e-07 8.32e-10 0.275
nd: 1.903664
Vd: 31.318289
glass_code: 904313
glass_status: standard
density: 4.56 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 7.3e-06 K-1
- temperature_range: 20 300 °C
coefficient: 8.8e-06 K-1
dPgF: 0.0012
References
CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)