Optical constants of CDGM - ZLAF (Dense lanthanum flint)
D-ZLAF52LA-25
Wavelength:
µm
(0.340 – 2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.85743559λ^2}{λ^2-0.00962363637}+\frac{0.323469816λ^2}{λ^2-0.0398398385}+\frac{1.2894946λ^2}{λ^2-98.4654718}$$Conditions & Spec sheet
n_absolute: false wavelength_vacuum: false temperature: 20.0 ℃ thermal_dispersion: - type: "Schott formula" coefficients: 5.23e-06 1.56e-08 -3.55e-11 8.33e-07 7.37e-10 0.217 nd: 1.808820 Vd: 40.970313 glass_code: 809410 density: 4.56 g/cm3 thermal_expansion: - temperature_range: -30 70 ℃ coefficient: 6.6e-06 K-1 - temperature_range: 20 300 ℃ coefficient: 8.3e-06 K-1 dPgF: -0.0058 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