Optical constants of CDGM - ZPK (Dense phosphate crown)
D-ZPK3-25
Wavelength:
µm
(0.280 – 2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{0.580374258λ^2}{λ^2-0.00172131188}+\frac{0.923503788λ^2}{λ^2-0.0126541722}+\frac{1.03923776λ^2}{λ^2-105.366349}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 20.0 ℃
thermal_dispersion:
- type: "Schott formula"
coefficients: -8.61e-06 1.14e-08 -3.06e-11 3.5e-07 1.08e-10 0.215
nd: 1.593270
Vd: 67.226420
glass_code: 593672
density: 3.37 g/cm3
thermal_expansion:
- temperature_range: -30 70 ℃
coefficient: 9.2e-06 K-1
- temperature_range: 20 300 ℃
coefficient: 1.15e-05 K-1
dPgF: 0.0054
climatic_resistance: 1.0
Comments
anneal rate:25℃/h
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets