Optical constants of CDGM - BAK (Barium crown)
H-BAK3
Wavelength:
µm
(0.290 – 2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{0.63512858λ^2}{λ^2-0.00255407022}+\frac{0.920839763λ^2}{λ^2-92.9065095}+\frac{0.724654326λ^2}{λ^2-0.0143580146}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 20.0 ℃
thermal_dispersion:
- type: "Schott formula"
coefficients: 1.95e-06 2.23e-08 -5.19e-12 5.17e-07 2.24e-10 0.142
nd: 1.546780
Vd: 62.776077
glass_code: 547628
density: 2.84 g/cm3
thermal_expansion:
- temperature_range: -30 70 ℃
coefficient: 6.2e-06 K-1
- temperature_range: 20 300 ℃
coefficient: 8e-06 K-1
dPgF: -0.0014
climatic_resistance: 1.0
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets