Optical constants of CDGM - ZLAF (Dense lanthanum flint)
H-ZLAF1
Wavelength:
µm
(0.320–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{0.513637795λ^2}{λ^2-0.0313064446}+\frac{1.65030785λ^2}{λ^2-0.0073538878}+\frac{1.47644096λ^2}{λ^2-100.105262}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 3.15e-06 1.76e-08 -6.68e-11 5.2e-07 1.18e-10 0.262
nd: 1.801660
Vd: 44.263459
glass_code: 802443
density: 4.3 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 5.3e-06 K-1
- temperature_range: 20 300 °C
coefficient: 7.2e-06 K-1
dPgF: -0.0078
climatic_resistance: 1.0
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets