Optical constants of OHARA - BAH (Barium, high-index)
BAH30
Wavelength:
µm
(0.3–2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.6543867-0.0084478289λ^{2}+0.022275774λ^{-2}+0.00090008133λ^{-4}-3.5291806\text{×}10^{-05}λ^{-6}+4.7103195\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 25.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 2.492e-06 0.0 0.0 0.0 0.0 0.0
nd: 1.650158
Vd: 39.390461
glass_code: 650394
glass_status: preferred
density: 3.91 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 9.2e-06 K-1
- temperature_range: 20 300 °C
coefficient: 1.05e-05 K-1
dPgF: 0.0015
acid_resistance: 51.2
phosphate_resistance: 2.0
References
OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets