Optical constants of SCHOTT - LaSF (Lanthanum dense flint)
N-LASF31
Wavelength:
µm
(0.32–2.5)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.71317198λ^2}{λ^2-0.00819172228}+\frac{0.718575109λ^2}{λ^2-0.0297801704}+\frac{1.7233247λ^2}{λ^2-138.461313}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 20.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 2.29e-06 8.93e-09 -1.59e-11 6.52e-07 8.09e-10 0.236 nd: 1.88067E+00 Vd: 4.10100E+01 glass_code: 881410.541 glass_status: preferred density: 5.41 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 6.8e-06 K-1 - temperature_range: 20 300 °C coefficient: 7.7e-06 K-1 dPgF: -0.0084 climatic_resistance: 1.0 stain_resistance: 0.0 acid_resistance: 2.0 alkali_resistance: 1.0 phosphate_resistance: 1.0
Comments
was replaced by N-LASF31A
References
SCHOTT Zemax catalog 2017-01-20b (obtained from http://www.schott.com)
See also SCHOTT glass data sheets