Optical constants of SUMITA - PSK (Dense phosphate crown)
K-PSK11
Wavelength:
µm
(0.310–2.000)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.4158701-0.0091407676λ^{2}+0.012869238λ^{-2}+0.0001991764λ^{-4}+2.7958423\text{×}10^{-06}λ^{-6}+8.1672946\text{×}10^{-08}λ^{-8}$$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: 1.56580
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