Optical constants of SCHOTT - LaSF (Lanthanum dense flint)
N-LASF46
Wavelength:
µm
(0.38–2.5)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{2.18073678λ^2}{λ^2-0.0125642118}+\frac{0.298978656λ^2}{λ^2-0.056469999}+\frac{1.62190046λ^2}{λ^2-105.662819}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 20.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 3.6e-06 1.2e-08 -2.68e-11 8.42e-07 1.15e-09 0.272 nd: 1.90138E+00 Vd: 3.16400E+01 glass_code: 901316.446 glass_status: preferred density: 4.46 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 6.02e-06 K-1 - temperature_range: 20 300 °C coefficient: 7.23e-06 K-1 dPgF: 0.0035 climatic_resistance: 1.0 stain_resistance: 0.0 acid_resistance: 3.3 alkali_resistance: 1.0 phosphate_resistance: 1.0
Comments
was replaced by N-LASF46A
References
SCHOTT Zemax catalog 2017-01-20b (obtained from http://www.schott.com)
See also SCHOTT glass data sheets