Optical constants of CDGM - ZLAF (Dense lanthanum flint)
H-ZLAF52A
Wavelength:
µm
(0.340 – 2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.85313688λ^2}{λ^2-0.00985534639}+\frac{0.317938591λ^2}{λ^2-0.0392611678}+\frac{1.16396318λ^2}{λ^2-93.1032763}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 20.0 ℃
thermal_dispersion:
- type: "Schott formula"
coefficients: 8.88e-06 1.78e-08 -3.99e-11 8.58e-07 7.59e-10 0.22
nd: 1.806100
Vd: 41.016887
glass_code: 806410
density: 4.48 g/cm3
thermal_expansion:
- temperature_range: -30 70 ℃
coefficient: 6.1e-06 K-1
- temperature_range: 20 300 ℃
coefficient: 7.5e-06 K-1
dPgF: -0.0067
climatic_resistance: 1.0
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets