Optical constants of SUMITA - PSK (Dense phosphate crown)
K-PSK400
Wavelength:
µm
(0.270–2.000)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.5082353-0.0073346094λ^{2}+0.012618342λ^{-2}+0.00023225231λ^{-4}-9.8397157\text{×}10^{-06}λ^{-6}+6.9870981\text{×}10^{-07}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: -1.29e-05 6.41e-09 -4.23e-11 4.04e-07 7.68e-10 0.173
nd: 1.59500
Vd: 67.8
glass_code: 595678
density: 4.05 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 1.01e-05 K-1
- temperature_range: 20 300 °C
coefficient: 1.29e-05 K-1
dPgF: 0.0129
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