Optical constants of CDGM - ZLAF (Dense lanthanum flint)
D-ZLAF50-25
Wavelength:
µm
(0.313 – 2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{0.281077854λ^2}{λ^2-0.0346761107}+\frac{1.19505397λ^2}{λ^2-91.8385642}+\frac{1.88534009λ^2}{λ^2-0.00975311743}$$Conditions & Spec sheet
n_absolute: false wavelength_vacuum: false temperature: 20.0 ℃ thermal_dispersion: - type: "Schott formula" coefficients: 4.59e-06 1.77e-08 -4.18e-11 8.47e-07 3.91e-10 0.15 nd: 1.802250 Vd: 45.452746 glass_code: 802455 density: 4.89 g/cm3 thermal_expansion: - temperature_range: -30 70 ℃ coefficient: 6.2e-06 K-1 - temperature_range: 20 300 ℃ coefficient: 7.5e-06 K-1 dPgF: -0.009 climatic_resistance: 1.0
Comments
anneal rate:25℃/h
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets