Optical constants of CDGM - ZLAF (Dense lanthanum flint)
H-ZLAF50E
Wavelength:
µm
(0.310 – 2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.22239213λ^2}{λ^2-0.00445444481}+\frac{0.952859931λ^2}{λ^2-0.0229973985}+\frac{1.37994067λ^2}{λ^2-99.1991267}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 20.0 ℃
thermal_dispersion:
- type: "Schott formula"
coefficients: 1.15e-06 1.32e-08 -1.72e-11 6.09e-07 4.6e-10 0.211
nd: 1.804000
Vd: 46.574487
glass_code: 804466
glass_status: standard
density: 4.44 g/cm3
thermal_expansion:
- temperature_range: -30 70 ℃
coefficient: 6.2e-06 K-1
- temperature_range: 20 300 ℃
coefficient: 7.8e-06 K-1
dPgF: -0.0088
climatic_resistance: 1.0
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets