Optical constants of OHARA - FPL (Fluorophosphate, low-index)
S-FPL51Y
Wavelength:
µm
(0.24–2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.14031443λ^2}{λ^2-0.00595466872}+\frac{0.0771496272λ^2}{λ^2-0.0223953953}+\frac{1.43721957λ^2}{λ^2-274.290057}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 25.0 °C thermal_dispersion: - type: "Schott formula" coefficients: -2.1e-05 -3.8e-09 -4.12e-11 3.32e-07 2.85e-10 0.191 nd: 1.497003 Vd: 81.138165 glass_code: 497811 density: 3.66 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 1.36e-05 K-1 - temperature_range: 20 300 °C coefficient: 1.61e-05 K-1 dPgF: 0.0279 climatic_resistance: 2.0 acid_resistance: 51.0 phosphate_resistance: 4.2
Comments
Improved XMT at 365
References
OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets