Optical constants of CDGM - ZK (Dense crown)
D-ZK21
Wavelength:
µm
(0.280–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.31514915λ^2}{λ^2-103.989436}+\frac{1.08358135λ^2}{λ^2-0.0143813024}+\frac{0.513108754λ^2}{λ^2+0.00036392391}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 4.26e-06 1.53e-08 -2.43e-11 4.86e-07 2.51e-10 0.199
nd: 1.624460
Vd: 58.207924
glass_code: 624582
density: 2.99 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 6.1e-06 K-1
- temperature_range: 20 300 °C
coefficient: 8.4e-06 K-1
dPgF: -0.0065
climatic_resistance: 1.0
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