Optical constants of CDGM - ZK (Dense crown)
D-ZK3L-25
Wavelength:
µm
(0.300–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{0.636443631λ^2}{λ^2-0.0021737174}+\frac{0.856921557λ^2}{λ^2-0.0144861653}+\frac{1.23247717λ^2}{λ^2-107.585666}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 2.09e-06 1.33e-08 5.99e-11 4.94e-07 2.85e-10 0.176
nd: 1.590900
Vd: 60.618517
glass_code: 591606
density: 2.84 g/cm3
thermal_expansion:
- temperature_range: 20 300 °C
coefficient: 9.2e-06 K-1
dPgF: -0.0046
Comments
anneal rate:25°C/h
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets