Optical constants of OHARA - NPH (Niobophosphate, high-index)
S-NPH3
Wavelength:
µm
(0.36–2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{2.09834903λ^2}{λ^2-0.0179123869}+\frac{0.489088388λ^2}{λ^2-0.0776653353}+\frac{2.94009268λ^2}{λ^2-160.930428}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 25.0 °C thermal_dispersion: - type: "Schott formula" coefficients: -1.98e-06 1.36e-08 -3.16e-11 1.15e-06 1.85e-09 0.34 nd: 1.959060 Vd: 17.471252 density: 3.59 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 5.9e-06 K-1 dPgF: 0.0466 climatic_resistance: 1.0 acid_resistance: 1.0 phosphate_resistance: 1.0
Comments
Recommended - High Index
References
OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets