Optical constants of SUMITA - SFLD
K-SFLD1
Wavelength:
µm
(0.360–2.000)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.8465679-0.01179579λ^{2}+0.032766631λ^{-2}+0.0014514223λ^{-4}-4.8225155\text{×}10^{-05}λ^{-6}+1.2981324\text{×}10^{-05}λ^{-8}$$Conditions & Spec sheet
n_absolute: false wavelength_vacuum: false temperature: 20.0 ℃ thermal_dispersion: - type: "Schott formula" coefficients: -2e-06 1.26e-08 -4.49e-10 9.35e-07 1.09e-09 0.27 nd: 1.71736 Vd: 29.5 glass_code: 717295 density: 3.03 g/cm3 thermal_expansion: - temperature_range: -30 70 ℃ coefficient: 8.2e-06 K-1 - temperature_range: 20 300 ℃ coefficient: 9.7e-06 K-1 dPgF: 0.0075 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