Optical constants of OHARA - BAM (Barium, medium-index)
BAM4
Wavelength:
µm
(0.365–0.9)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.521467-0.007991308λ^{2}+0.01891922λ^{-2}+0.000549235λ^{-4}-1.150794\text{×}10^{-05}λ^{-6}+2.505827\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 25.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 5.7294e-07 0.0 0.0 0.0 0.0 0.0
nd: 1.605620
Vd: 43.723021
glass_code: 606437
glass_status: preferred
density: 3.5 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 8e-06 K-1
- temperature_range: 20 300 °C
coefficient: 9e-06 K-1
dPgF: 0.0004
References
OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets