Optical constants of SUMITA - CD
K-CD120
Wavelength:
µm
(0.360–2.000)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.8630662-0.011977981λ^{2}+0.032706279λ^{-2}+0.0016821116λ^{-4}-7.4783483\text{×}10^{-05}λ^{-6}+1.4696883\text{×}10^{-05}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: -4.82e-06 1.79e-08 -2.28e-10 9.05e-07 2.82e-10 0.28
nd: 1.72250
Vd: 29.2
glass_code: 723292
density: 3.01 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 9.2e-06 K-1
- temperature_range: 20 300 °C
coefficient: 1.19e-05 K-1
dPgF: 0.009
acid_resistance: 1.0
References
SUMITA Zemax catalog 2017-02-02 (obtained from http://www.sumita-opt.co.jp)
See also SUMITA optical glass data book