Optical constants of CDGM - ZF (Dense flint)
D-ZF93-25
Wavelength:
µm
(0.400–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.4330228λ^2}{λ^2-101.185435}+\frac{2.13630545λ^2}{λ^2-0.0138161232}+\frac{0.630184037λ^2}{λ^2-0.065857845}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 1.28e-05 3.34e-08 -1.53e-10 2.75e-06 2.52e-09 0.299
nd: 1.999800
Vd: 20.686444
density: 6.11 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 7.8e-06 K-1
- temperature_range: 20 300 °C
coefficient: 9.4e-06 K-1
dPgF: 0.0283
climatic_resistance: 1.0
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