Optical constants of SUMITA - SFLD
K-SFLD66
Wavelength:
µm
(0.370–2.000)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=3.09503-0.012322111λ^{2}+0.043740379λ^{-2}+0.0024511569λ^{-4}-9.9218754\text{×}10^{-05}λ^{-6}+2.3715962\text{×}10^{-05}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: -6.63e-06 1.28e-08 -1.8e-10 1.03e-06 1.51e-09 0.29
nd: 1.79925
Vd: 24.6
glass_code: 799246
density: 3.35 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 8.7e-06 K-1
- temperature_range: 20 300 °C
coefficient: 1.07e-05 K-1
dPgF: 0.0152
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