Optical constants of SUMITA - SSK (Very dense flint)
K-SSK1
Wavelength:
µm
(0.290–2.000)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.5692173-0.010022582λ^{2}+0.016067095λ^{-2}+0.00039868115λ^{-4}-1.5698671\text{×}10^{-05}λ^{-6}+1.1774033\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 1.61e-06 1.28e-08 -2.14e-10 5.61e-07 1.14e-09 0.186
nd: 1.61720
Vd: 54.0
glass_code: 617540
density: 3.46 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 7e-06 K-1
- temperature_range: 20 300 °C
coefficient: 8.4e-06 K-1
dPgF: -0.0053
climatic_resistance: 1.0
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