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Optical constants of CDGM - K (Crown)
H-K1
Wavelength:
µm
(0.290 – 2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.2199551-0.00854352351λ^{2}+0.0103698555λ^{-2}+0.000273240959λ^{-4}-1.58736064\text{×}10^{-05}λ^{-6}+9.73235567\text{×}10^{-07}λ^{-8}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: -4.14e-06 1.96e-08 -3.87e-11 5.49e-07 -2.63e-10 0.161
nd: 1.499673
Vd: 62.090817
glass_code: 500621
density: 2.47 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 8.7e-06 K-1
- temperature_range: 20 300 °C
coefficient: 1.04e-05 K-1
dPgF: -0.0009
climatic_resistance: 3.0
References
CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)