Optical constants of CDGM - ZLAF (Dense lanthanum flint)
H-ZLAF66
Wavelength:
µm
(0.350–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{0.233018785λ^2}{λ^2-0.0537435377}+\frac{1.90660392λ^2}{λ^2-0.0114336559}+\frac{1.37147086λ^2}{λ^2-110.630887}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: -1.89e-06 1.64e-08 -1.41e-10 8.7e-07 1.01e-09 0.245
nd: 1.801000
Vd: 34.966919
glass_code: 801350
density: 3.89 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 7.9e-06 K-1
- temperature_range: 20 300 °C
coefficient: 9.3e-06 K-1
dPgF: 0.0016
climatic_resistance: 1.0
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets