Optical constants of CDGM - ZLAF (Dense lanthanum flint)
H-ZLAF56B
Wavelength:
µm
(0.360–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=3.14933428-0.0111549297λ^{2}+0.0375191596λ^{-2}+0.000787288786λ^{-4}+2.9727118\text{×}10^{-05}λ^{-6}+7.44861477\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: -9.87e-07 1.97e-08 -1.23e-10 8.59e-07 9.48e-10 0.252
nd: 1.806105
Vd: 33.286897
glass_code: 806333
glass_status: standard
density: 3.79 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 7.4e-06 K-1
- temperature_range: 20 300 °C
coefficient: 8.6e-06 K-1
dPgF: 0.0013
climatic_resistance: 1.0
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets