Optical constants of CDGM - ZLAF (Dense lanthanum flint)
D-ZLAF85LS-25
Wavelength:
µm
(0.340–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.70152719λ^2}{λ^2-0.00796295658}+\frac{0.633298236λ^2}{λ^2-0.0320099725}+\frac{1.43191921λ^2}{λ^2-110.67927}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
nd: 1.853440
Vd: 40.557917
glass_code: 853406
density: 5.29 g/cm3
thermal_expansion:
- temperature_range: 20 300 °C
coefficient: 8.1e-06 K-1
dPgF: -0.008
Comments
anneal rate:25°C/h
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets