Optical constants of CDGM - ZK (Dense crown)
D-ZK3
Wavelength:
µm
(0.290–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.33936811λ^2}{λ^2-0.00760612309}+\frac{0.148690268λ^2}{λ^2-0.0238444644}+\frac{1.00954033λ^2}{λ^2-89.0419787}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 1.68e-06 9.68e-09 -2e-11 5.34e-07 1.41e-09 0.172
nd: 1.589130
Vd: 61.152901
glass_code: 589612
density: 2.83 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 7.2e-06 K-1
- temperature_range: 20 300 °C
coefficient: 9.3e-06 K-1
dPgF: -0.0053
climatic_resistance: 4.0
Comments
anneal rate:4°C/h
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets