Optical constants of OHARA - BAL (Barium, low-index)
S-BAL2
Wavelength:
µm
(0.34 – 2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.30923813λ^2}{λ^2-0.00838873953}+\frac{0.114137353λ^2}{λ^2-0.0399436485}+\frac{1.17882259λ^2}{λ^2-140.257892}$$Conditions & Spec sheet
n_absolute: false wavelength_vacuum: false temperature: 25.0 ℃ thermal_dispersion: - type: "Schott formula" coefficients: -4.92e-06 1.14e-08 -3.59e-11 5.24e-07 7.01e-10 0.247 nd: 1.570989 Vd: 50.799858 glass_code: 571508 density: 2.89 g/cm3 thermal_expansion: - temperature_range: -30 70 ℃ coefficient: 9.1e-06 K-1 - temperature_range: 20 300 ℃ coefficient: 1.09e-05 K-1 dPgF: -0.0005 climatic_resistance: 3.0 acid_resistance: 1.0 phosphate_resistance: 1.0
Comments
Recommended
References
OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets