Optical constants of SCHOTT - LaK (Lanthanum crown)
N-LAK33A
Wavelength:
µm
(0.32–2.5)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.44116999λ^2}{λ^2-0.00680933877}+\frac{0.571749501λ^2}{λ^2-0.0222291824}+\frac{1.16605226λ^2}{λ^2-80.9379555}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 20.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 2.63e-06 1.11e-08 -3.92e-12 5.02e-07 5.08e-10 0.188 nd: 1.75393 Vd: 52.27 glass_code: 754523.422 glass_status: special density: 4.216 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 5.8e-06 K-1 - temperature_range: 20 300 °C coefficient: 7.02e-06 K-1 dPgF: -0.0086 climatic_resistance: 1.0 stain_resistance: 1.0 acid_resistance: 51.0 alkali_resistance: 1.0 phosphate_resistance: 2.0
Comments
inquiry glass
References
SCHOTT Zemax catalog 2017-01-20b (obtained from http://www.schott.com)
See also SCHOTT glass data sheets