Optical constants of SCHOTT - LaSF (Lanthanum dense flint)
N-LASF40
Wavelength:
µm
(0.365 – 2.5)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.98550331λ^2}{λ^2-0.010958331}+\frac{0.274057042λ^2}{λ^2-0.0474551603}+\frac{1.28945661λ^2}{λ^2-96.9085286}$$Conditions & Spec sheet
n_absolute: false wavelength_vacuum: false temperature: 20.0 ℃ thermal_dispersion: - type: "Schott formula" coefficients: 8.1e-06 1.25e-08 -1.73e-11 8.27e-07 1.08e-09 0.238 nd: 1.83404 Vd: 37.3 glass_code: 834373.443 glass_status: standard density: 4.43 g/cm3 thermal_expansion: - temperature_range: -30 70 ℃ coefficient: 5.84e-06 K-1 - temperature_range: 20 300 ℃ coefficient: 6.9e-06 K-1 dPgF: -0.0024 climatic_resistance: 1.0 stain_resistance: 1.0 acid_resistance: 51.2 alkali_resistance: 1.0 phosphate_resistance: 1.3
Comments
References
SCHOTT Zemax catalog 2017-01-20b (obtained from http://www.schott.com)
See also SCHOTT glass data sheets