Optical constants of SUMITA - VC
K-VC181
Wavelength:
µm
(0.340–2.000)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=3.1886895-0.013820455λ^{2}+0.029631617λ^{-2}+0.0010659501λ^{-4}-3.7795055\text{×}10^{-05}λ^{-6}+4.3966629\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 6.99e-06 2.24e-08 -2.94e-10 8.37e-07 3.41e-10 0.213
nd: 1.81055
Vd: 41.1
glass_code: 811411
density: 4.71 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 5.7e-06 K-1
- temperature_range: 20 300 °C
coefficient: 7.9e-06 K-1
dPgF: -0.006
climatic_resistance: 1.0
acid_resistance: 3.0
References
SUMITA Zemax catalog 2017-02-02 (obtained from http://www.sumita-opt.co.jp)
See also SUMITA optical glass data book