Optical constants of SCHOTT - SK (Dense crown)
N-SK4
Wavelength:
µm
(0.334–2.5)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.32993741λ^2}{λ^2-0.00716874107}+\frac{0.228542996λ^2}{λ^2-0.0246455892}+\frac{0.988465211λ^2}{λ^2-100.886364}$$Conditions & Spec sheet
n_absolute: false wavelength_vacuum: false temperature: 20.0 ℃ thermal_dispersion: - type: "Schott formula" coefficients: 7.96e-07 1.3e-08 -1.31e-11 4.36e-07 6.01e-10 0.179 nd: 1.61272 Vd: 58.63 glass_code: 613586.354 glass_status: standard density: 3.535 g/cm3 thermal_expansion: - temperature_range: -30 70 ℃ coefficient: 6.46e-06 K-1 - temperature_range: 20 300 ℃ coefficient: 7.38e-06 K-1 dPgF: -0.0004 climatic_resistance: 3.0 stain_resistance: 1.0 acid_resistance: 51.2 alkali_resistance: 2.0 phosphate_resistance: 2.0
Comments
References
SCHOTT Zemax catalog 2017-01-20b (obtained from http://www.schott.com)
See also SCHOTT glass data sheets