Optical constants of CDGM - BAF (Barium flint)
BAF2
Wavelength:
µm
(0.310–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.41667247-0.00746725517λ^{2}+0.0168668464λ^{-2}-1.29697272\text{×}10^{-05}λ^{-4}+5.15992602\text{×}10^{-05}λ^{-6}-1.81803614\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 20.0 ℃
thermal_dispersion:
- type: "Schott formula"
coefficients: 1.08e-07 2.09e-08 -1.93e-10 8.16e-07 6.26e-11 0.159
nd: 1.569703
Vd: 49.435926
glass_code: 570495
glass_status: preferred
density: 3.14 g/cm3
thermal_expansion:
- temperature_range: -30 70 ℃
coefficient: 8e-06 K-1
- temperature_range: 20 300 ℃
coefficient: 9.6e-06 K-1
dPgF: -0.0007
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets