Optical constants of CDGM - LAF (Lanthanum flint)
H-LAF6LA
Wavelength:
µm
(0.320 – 2.400)
Derived optical constants
n
k
logX
logY
eV
Dispersion formula
$$n^2=3.01970241-0.0158473652λ^{2}+0.0227654052λ^{-2}+0.000979523125λ^{-4}-6.86654467\text{×}10^{-05}λ^{-6}+4.74327269\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_absolute: false
λ_vacuum: false
temperature: 20.0 °C
n_d: 1.757003
V_d: 47.713789
glass_code: 757477
density: 4.06 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 5.7e-06 K-1
- temperature_range: 20 300 °C
coefficient: 6.9e-06 K-1
ΔP_gF: -0.0098
climatic_resistance: 1.0
References
CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)