Optical constants of SUMITA - GIR
K-GIR79
Wavelength:
µm
(0.350–2.000)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=3.3195074-0.0085801253λ^{2}+0.039978521λ^{-2}+0.0014465322λ^{-4}-3.0453007\text{×}10^{-05}λ^{-6}+7.8005005\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 20.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 7.61e-06 2.08e-08 -1.25e-10 1.18e-06 1.01e-09 0.239 nd: 1.85588 Vd: 33.0 glass_code: 856330 density: 5.14 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 7.1e-06 K-1 - temperature_range: 20 300 °C coefficient: 8.3e-06 K-1 dPgF: -0.0017 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