Optical constants of SCHOTT - LaSF (Lanthanum dense flint)
N-LASF41
Wavelength:
µm
(0.334–2.5)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.86348331λ^2}{λ^2-0.00910368219}+\frac{0.413307255λ^2}{λ^2-0.0339247268}+\frac{1.35784815λ^2}{λ^2-93.3580595}$$Conditions & Spec sheet
n_absolute: false wavelength_vacuum: false temperature: 20.0 ℃ thermal_dispersion: - type: "Schott formula" coefficients: 3.03e-06 1.04e-08 -1.3e-11 6.62e-07 7.82e-10 0.209 nd: 1.83501 Vd: 43.13 glass_code: 835431.485 glass_status: standard density: 4.845 g/cm3 thermal_expansion: - temperature_range: -30 70 ℃ coefficient: 6.19e-06 K-1 - temperature_range: 20 300 ℃ coefficient: 7.33e-06 K-1 dPgF: -0.0083 climatic_resistance: 1.0 stain_resistance: 1.0 acid_resistance: 4.0 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