Optical constants of SCHOTT - LaSF (Lanthanum dense flint)
N-LASF46A
Wavelength:
µm
(0.37–2.5)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{2.16701566λ^2}{λ^2-0.0123595524}+\frac{0.319812761λ^2}{λ^2-0.0560610282}+\frac{1.66004486λ^2}{λ^2-107.047718}$$Conditions & Spec sheet
n_absolute: false wavelength_vacuum: false temperature: 20.0 ℃ thermal_dispersion: - type: "Schott formula" coefficients: 3.53e-06 1.24e-08 -1.87e-11 8.39e-07 1.04e-09 0.275 nd: 1.90366 Vd: 31.32 glass_code: 904313.445 glass_status: standard density: 4.449 g/cm3 thermal_expansion: - temperature_range: -30 70 ℃ coefficient: 6e-06 K-1 - temperature_range: 20 300 ℃ coefficient: 7.15e-06 K-1 dPgF: 0.0042 climatic_resistance: 1.0 stain_resistance: 0.0 acid_resistance: 3.0 alkali_resistance: 1.0 phosphate_resistance: 1.0
Comments
References
SCHOTT Zemax catalog 2017-01-20b (obtained from http://www.schott.com)
See also SCHOTT glass data sheets