Optical constants of CDGM - ZK (Dense crown)
H-ZK20
Wavelength:
µm
(0.290–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{0.812249368λ^2}{λ^2-0.0181753969}+\frac{0.755251214λ^2}{λ^2-0.00247827771}+\frac{1.15073913λ^2}{λ^2-144.030731}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 20.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 3.38e-07 1.59e-08 -2.45e-11 6.4e-07 4.47e-10 0.192 nd: 1.617200 Vd: 53.913743 glass_code: 617539 density: 3.66 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 7.8e-06 K-1 - temperature_range: 20 300 °C coefficient: 9e-06 K-1 dPgF: -0.0009
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets