Optical constants of OHARA - FSL (Fluorosilicate, low-index)
FSL3
Wavelength:
µm
(0.3–2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.1205655-0.0089437249λ^{2}+0.0090242393λ^{-2}+0.00013786285λ^{-4}-8.2750398\text{×}10^{-07}λ^{-6}+2.6740448\text{×}10^{-08}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 25.0 °C thermal_dispersion: - type: "Schott formula" coefficients: -4.652e-06 0.0 0.0 0.0 0.0 0.0 nd: 1.464499 Vd: 65.938855 glass_code: 465659 glass_status: preferred density: 2.25 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 7.9e-06 K-1 - temperature_range: 20 300 °C coefficient: 9.3e-06 K-1 dPgF: -0.002 acid_resistance: 52.0 phosphate_resistance: 2.0
References
OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets