Optical constants of CDGM - ZPK (Dense phosphate crown)
D-ZPK5-25
Wavelength:
µm
(0.280–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{0.353073711λ^2}{λ^2-0.0178712877}+\frac{1.14580426λ^2}{λ^2-0.00563723799}+\frac{0.795754681λ^2}{λ^2-125.202885}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: -2.01e-05 4.05e-09 -1.52e-11 4e-07 1.43e-10 0.192
nd: 1.592160
Vd: 68.281511
glass_code: 592683
density: 4.29 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 1.23e-05 K-1
- temperature_range: 20 300 °C
coefficient: 1.43e-05 K-1
dPgF: 0.0154
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