Optical constants of SUMITA - PSK (Dense phosphate crown)
K-PSK200(M)
Wavelength:
µm
(0.290–2.000)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.5524515-0.0088629121λ^{2}+0.014923738λ^{-2}+0.00026036731λ^{-4}-2.7057207\text{×}10^{-06}λ^{-6}+4.8084913\text{×}10^{-07}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: -3.04e-06 8.75e-09 -5.81e-11 5.61e-07 7.53e-10 0.187
nd: 1.61083
Vd: 58.9
glass_code: 613590
density: 3.38 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 1e-05 K-1
- temperature_range: 20 300 °C
coefficient: 1.23e-05 K-1
dPgF: 0.0029
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