Optical constants of CDGM - PK (Phosphate crown)
D-PK3
Wavelength:
µm
(0.300 – 2.400)
Derived optical constants
n
k
logX
logY
eV
Dispersion formula
$$n^2=2.29778839-0.00944743443λ^{2}+0.0107674711λ^{-2}-7.59126906\text{×}10^{-05}λ^{-4}+2.70221688\text{×}10^{-05}λ^{-6}-1.2965337\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_absolute: false
λ_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: -3.49e-06 1.52e-08 -7.04e-11 4.13e-07 3.57e-10 0.131
n_d: 1.525006
V_d: 70.361017
glass_code: 525704
density: 2.65 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 8.1e-06 K-1
- temperature_range: 20 300 °C
coefficient: 9.8e-06 K-1
ΔP_gF: 0.005
climatic_resistance: 2.0
References
CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)