Optical constants of CDGM - ZLAF (Dense lanthanum flint)
H-ZLAF92
Wavelength:
µm
(0.360 – 2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=3.83592109-0.0155216804λ^{2}+0.0558392182λ^{-2}+0.0025842306λ^{-4}-9.64328404\text{×}10^{-05}λ^{-6}+2.26279197\text{×}10^{-05}λ^{-8}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: -6.27e-07 1.53e-08 -2.95e-11 9.71e-07 1.4e-09 0.281
nd: 2.003307
Vd: 28.317370
density: 5.02 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 6.9e-06 K-1
- temperature_range: 20 300 °C
coefficient: 8.7e-06 K-1
dPgF: 0.0057
References
CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)