Optical constants of CDGM - ZLAF (Dense lanthanum flint)
H-ZLAF53BGT
Wavelength:
µm
(0.340–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{0.302813825λ^2}{λ^2-0.04559202}+\frac{1.25522353λ^2}{λ^2-99.9412194}+\frac{1.95575794λ^2}{λ^2-0.010816711}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 9.87e-06 1.65e-08 -3.22e-11 8.9e-07 1.12e-09 0.243
nd: 1.834000
Vd: 37.210555
glass_code: 834372
glass_status: standard
density: 4.54 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 5.9e-06 K-1
- temperature_range: 20 300 °C
coefficient: 7.2e-06 K-1
dPgF: -0.004
climatic_resistance: 1.0
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets