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Optical constants of OHARA - BAH (Barium, high-index)
BAH32
Wavelength:
µm
(0.3 – 2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.498643λ^2}{λ^2-0.009643255}+\frac{0.2175678λ^2}{λ^2-0.04511666}+\frac{1.559728λ^2}{λ^2-171.1121}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 25.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 6.7962e-06 0.0 0.0 0.0 0.0 0.0
nd: 1.669979
Vd: 39.279752
glass_code: 670393
glass_status: preferred
density: 4.02 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 7e-06 K-1
- temperature_range: 20 300 °C
coefficient: 8.1e-06 K-1
acid_resistance: 1.2
phosphate_resistance: 1.0
References
OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets