Optical constants of OHARA - BAL (Barium, low-index)
S-BAL12
Wavelength:
µm
(0.3–2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{0.714605258λ^2}{λ^2-0.00301763913}+\frac{0.621993289λ^2}{λ^2-0.016650545}+\frac{1.22537681λ^2}{λ^2-143.506314}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 25.0 °C thermal_dispersion: - type: "Schott formula" coefficients: -3.77e-07 1.04e-08 -3.79e-11 4.41e-07 4.08e-10 0.232 nd: 1.539956 Vd: 59.462478 glass_code: 540595 density: 2.75 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 8.6e-06 K-1 - temperature_range: 20 300 °C coefficient: 1.02e-05 K-1 dPgF: -0.0012 climatic_resistance: 1.0 acid_resistance: 1.0 phosphate_resistance: 2.0
Comments
Recommended
References
OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets