Optical constants of SCHOTT - BaK (Barium crown)
N-BAK4HT
Wavelength:
µm
(0.334–2.5)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.28834642λ^2}{λ^2-0.00779980626}+\frac{0.132817724λ^2}{λ^2-0.0315631177}+\frac{0.945395373λ^2}{λ^2-105.965875}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 20.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 3.06e-06 1.44e-08 -2.23e-11 5.46e-07 6.05e-10 0.189 nd: 1.56883 Vd: 55.98 glass_code: 569560.305 glass_status: standard density: 3.046 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 6.99e-06 K-1 - temperature_range: 20 300 °C coefficient: 7.93e-06 K-1 dPgF: -0.001 climatic_resistance: 1.0 stain_resistance: 0.0 acid_resistance: 1.2 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