Optical constants of OHARA - BAL (Barium, low-index)
S-BAL50
Wavelength:
µm
(0.3–2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.3982661-0.010222781λ^{2}+0.012110445λ^{-2}+0.00037767581λ^{-4}-2.7339021\text{×}10^{-05}λ^{-6}+1.5701891\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 25.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 1.64e-06 1.93e-08 4.39e-12 5.12e-07 8.07e-10 0.162 nd: 1.559625 Vd: 61.172671 glass_code: 560612 glass_status: special density: 2.74 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 7.5e-06 K-1 - temperature_range: 20 300 °C coefficient: 9e-06 K-1 dPgF: -0.0033 climatic_resistance: 2.0 acid_resistance: 4.2 phosphate_resistance: 2.2
References
OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets