Optical constants of SCHOTT - LaSF (Lanthanum dense flint)
N-LASF31A
Wavelength:
µm
(0.25–2.5)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.96485075λ^2}{λ^2-0.00982060155}+\frac{0.475231259λ^2}{λ^2-0.0344713438}+\frac{1.48360109λ^2}{λ^2-110.739863}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 20.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 1.67e-06 8.9e-09 -8.73e-12 7.47e-07 7.46e-10 0.207 nd: 1.883 Vd: 40.76 glass_code: 883408.551 glass_status: standard density: 5.51 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 6.74e-06 K-1 - temperature_range: 20 300 °C coefficient: 7.72e-06 K-1 dPgF: -0.0085 climatic_resistance: 1.0 stain_resistance: 0.0 acid_resistance: 2.3 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