Optical constants of CDGM - ZK (Dense crown)
D-ZK3-25
Wavelength:
µm
(0.290–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.24347604λ^2}{λ^2-108.031442}+\frac{0.918798491λ^2}{λ^2-0.0139520404}+\frac{0.567180042λ^2}{λ^2-0.00127620015}$$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: 1.588330
Vd: 61.284362
glass_code: 588613
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: -0.0039
climatic_resistance: 4.0
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