Optical constants of CDGM - ZLAF (Dense lanthanum flint)
D-ZLAF85LS
Wavelength:
µm
(0.340–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{0.638690484λ^2}{λ^2-0.0319257637}+\frac{1.69998504λ^2}{λ^2-0.00791790668}+\frac{1.45547394λ^2}{λ^2-112.179157}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
nd: 1.854500
Vd: 40.593546
glass_code: 855406
density: 5.29 g/cm3
thermal_expansion:
- temperature_range: 20 300 °C
coefficient: 8.1e-06 K-1
dPgF: -0.008
Comments
anneal rate:4°C/h
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets