Optical constants of SUMITA - PSF
K-PSFn202
Wavelength:
µm
(0.390–2.000)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=3.8508789-0.016529344λ^{2}+0.066096066λ^{-2}+0.0058480521λ^{-4}-0.0005055984λ^{-6}+7.6558669\text{×}10^{-05}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 1.41e-05 2.66e-08 -5.37e-10 2.35e-06 1.36e-09 0.301
nd: 2.01960
Vd: 21.5
density: 6.22 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 7.4e-06 K-1
- temperature_range: 20 300 °C
coefficient: 8.6e-06 K-1
dPgF: 0.029
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