Optical constants of SUMITA - PMK
K-PMK30(M)
Wavelength:
µm
(0.280–2.000)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.2835931-0.0098380554λ^{2}+0.010317986λ^{-2}-3.5867157\text{×}10^{-06}λ^{-4}+2.1079335\text{×}10^{-05}λ^{-6}-1.145809\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 20.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 3.49e-07 1.51e-08 -7.35e-11 3.65e-07 5.07e-10 0.174 nd: 1.52002 Vd: 70.2 glass_code: 525704 density: 2.6 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 8.3e-06 K-1 - temperature_range: 20 300 °C coefficient: 8.7e-06 K-1 dPgF: 0.0069 climatic_resistance: 2.0 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