Optical constants of OHARA - BAH (Barium, high-index)
BAH22
Wavelength:
µm
(0.3 – 2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.6928266-0.0090141372λ^{2}+0.025058968λ^{-2}+0.0010140502λ^{-4}-3.2164637\text{×}10^{-05}λ^{-6}+5.6431441\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_absolute: false wavelength_vacuum: false temperature: 25.0 ℃ thermal_dispersion: - type: "Schott formula" coefficients: 4.851e-06 0.0 0.0 0.0 0.0 0.0 nd: 1.664459 Vd: 35.812757 glass_code: 664358 glass_status: preferred density: 3.96 g/cm3 thermal_expansion: - temperature_range: -30 70 ℃ coefficient: 8.5e-06 K-1 - temperature_range: 20 300 ℃ coefficient: 9.4e-06 K-1 dPgF: 0.0013 acid_resistance: 3.2 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