Optical constants of SCHOTT - LaSF (Lanthanum dense flint)
P-LASF51
Wavelength:
µm
(0.334–2.5)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.84568806λ^2}{λ^2-0.00988495571}+\frac{0.3390016λ^2}{λ^2-0.0378097402}+\frac{1.32418921λ^2}{λ^2-97.841543}$$Conditions & Spec sheet
n_absolute: false wavelength_vacuum: false temperature: 20.0 ℃ thermal_dispersion: - type: "Schott formula" coefficients: 7.79e-06 1.1e-08 -2.03e-11 7.86e-07 8.78e-10 0.215 nd: 1.81 Vd: 40.93 glass_code: 810409.458 glass_status: standard density: 4.579 g/cm3 thermal_expansion: - temperature_range: -30 70 ℃ coefficient: 6.01e-06 K-1 - temperature_range: 20 300 ℃ coefficient: 7.4e-06 K-1 dPgF: -0.008 climatic_resistance: 1.0 stain_resistance: 1.0 acid_resistance: 51.3 alkali_resistance: 1.0 phosphate_resistance: 2.2
Comments
suitable for precision molding
References
SCHOTT Zemax catalog 2017-01-20b (obtained from http://www.schott.com)
See also SCHOTT glass data sheets