Optical constants of SUMITA - PSK (Dense phosphate crown)
K-PSK200
Wavelength:
µm
(0.290–2.000)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.5593395-0.0088787219λ^{2}+0.015115397λ^{-2}+0.0002035651λ^{-4}+7.5991137\text{×}10^{-06}λ^{-6}-1.5375246\text{×}10^{-07}λ^{-8}$$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: 1.61305
Vd: 59.0
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: 0.0041
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