Optical constants of CDGM - K (Crown)
K4A
Wavelength:
µm
(0.320 – 2.400)
Derived optical constants
n
k
logX
logY
eV
Dispersion formula
$$n^2=2.24187488-0.00891932146λ^{2}+0.0126251741λ^{-2}-0.000298598739λ^{-4}+5.95648836\text{×}10^{-05}λ^{-6}-2.58633231\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 7.37e-06 2.2e-08 -6.81e-12 4.56e-07 4.32e-10 0.199
nd: 1.508021
Vd: 61.061308
glass_code: 508611
density: 2.43 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 4.7e-06 K-1
- temperature_range: 20 300 °C
coefficient: 5.2e-06 K-1
dPgF: -0.0045
climatic_resistance: 1.0
References
CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)