Optical constants of SUMITA - PSK (Dense phosphate crown)
K-PSK11(M)
Wavelength:
µm
(0.310–2.000)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.3980346-0.0090774696λ^{2}+0.012465635λ^{-2}+0.00027492499λ^{-4}-9.3436202\text{×}10^{-06}λ^{-6}+7.809668\text{×}10^{-07}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 20.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 3.62e-07 2e-08 -2.86e-11 4.27e-07 1.78e-10 0.218 nd: 1.55985 Vd: 61.0 glass_code: 566610 density: 3.08 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 8.2e-06 K-1 - temperature_range: 20 300 °C coefficient: 9.3e-06 K-1 dPgF: 0.0036 climatic_resistance: 2.0 acid_resistance: 5.0
References
SUMITA Zemax catalog 2017-02-02 (obtained from http://www.sumita-opt.co.jp)
See also SUMITA optical glass data book