Optical constants of CDGM - ZLAF (Dense lanthanum flint)
H-ZLAF71AGT
Wavelength:
µm
(0.360–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.54172779λ^2}{λ^2-131.963779}+\frac{2.03469901λ^2}{λ^2-0.0125481283}+\frac{0.264811834λ^2}{λ^2-0.055979471}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 1.47e-06 1.75e-08 -1.77e-11 6.76e-07 4.45e-10 0.301
nd: 1.850260
Vd: 32.216801
glass_code: 850322
density: 4.42 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 7.2e-06 K-1
- temperature_range: 20 300 °C
coefficient: 8.2e-06 K-1
dPgF: 0.0029
climatic_resistance: 1.0
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets