Optical constants of SUMITA - SSK (Very dense flint)
K-SSK3
Wavelength:
µm
(0.290–2.000)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.5591851-0.0099057522λ^{2}+0.016577727λ^{-2}+0.00054738619λ^{-4}-3.5329686\text{×}10^{-05}λ^{-6}+2.4596919\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 8.96e-06 1.89e-08 -2.12e-10 6.71e-07 9.18e-10 0.191
nd: 1.61484
Vd: 51.1
glass_code: 615511
density: 3.37 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 5.6e-06 K-1
- temperature_range: 20 300 °C
coefficient: 7.2e-06 K-1
dPgF: -0.0072
climatic_resistance: 1.0
acid_resistance: 4.0
References
SUMITA Zemax catalog 2017-02-02 (obtained from http://www.sumita-opt.co.jp)
See also SUMITA optical glass data book