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Optical constants of OHARA - BAM (Barium, medium-index)
BAM5
Wavelength:
µm
(0.3 – 2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.533703-0.0090417017λ^{2}+0.016851835λ^{-2}+0.00051005408λ^{-4}-1.7651257\text{×}10^{-05}λ^{-6}+1.8665437\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 25.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 3.33e-06 0.0 0.0 0.0 0.0 0.0
nd: 1.607289
Vd: 49.188575
glass_code: 607492
glass_status: preferred
density: 3.39 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 8.1e-06 K-1
- temperature_range: 20 300 °C
coefficient: 9.1e-06 K-1
dPgF: -0.001
acid_resistance: 52.2
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