Optical constants of CDGM - ZPK (Dense phosphate crown)
D-ZPK1A
Wavelength:
µm
(0.300 – 2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.5865056-0.00836488456λ^{2}+0.014712994λ^{-2}+6.50980579\text{×}10^{-05}λ^{-4}+2.0373089\text{×}10^{-05}λ^{-6}-9.57408813\text{×}10^{-07}λ^{-8}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: -1.22e-05 9.71e-09 -6.2e-11 2.18e-07 2.15e-10 0.311
nd: 1.620867
Vd: 63.876075
glass_code: 621638
density: 3.69 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 1.05e-05 K-1
- temperature_range: 20 300 °C
coefficient: 1.28e-05 K-1
dPgF: 0.0048
References
CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)