Optical constants of OHARA - BAM (Barium, medium-index)
BAM21
Wavelength:
µm
(0.3–2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.579457-0.0094225577λ^{2}+0.021195926λ^{-2}+0.0008094349λ^{-4}-2.4922189\text{×}10^{-05}λ^{-6}+3.9861235\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 25.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 4.781e-06 0.0 0.0 0.0 0.0 0.0 nd: 1.626059 Vd: 39.215631 glass_code: 626392 glass_status: preferred density: 3.63 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 8.2e-06 K-1 - temperature_range: 20 300 °C coefficient: 9.2e-06 K-1 dPgF: 0.0001 acid_resistance: 2.2 phosphate_resistance: 1.2
References
OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets