Optical constants of SUMITA - SK (Dense crown)
K-SK14
Wavelength:
µm
(0.280–2.000)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.5313894-0.010956275λ^{2}+0.013803544λ^{-2}+0.00029803889λ^{-4}-6.2451964\text{×}10^{-06}λ^{-6}+2.5686024\text{×}10^{-07}λ^{-8}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 20.0 ℃
thermal_dispersion:
- type: "Schott formula"
coefficients: 5.63e-07 2.16e-08 -8.94e-11 4.28e-07 2.18e-10 0.16
nd: 1.60311
Vd: 60.7
glass_code: 603607
density: 3.44 g/cm3
thermal_expansion:
- temperature_range: -30 70 ℃
coefficient: 5.7e-06 K-1
- temperature_range: 20 300 ℃
coefficient: 7.3e-06 K-1
dPgF: -0.0011
climatic_resistance: 3.0
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