Optical constants of OHARA - LAL (Lanthanum, low-index)
S-LAL14
Wavelength:
µm
(0.28–2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.2372097λ^2}{λ^2-0.015355132}+\frac{0.589722623λ^2}{λ^2+0.00030789625}+\frac{1.3192188λ^2}{λ^2-93.7202947}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 25.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 3.12e-06 1.19e-08 2.67e-12 4.01e-07 8.06e-10 0.216 nd: 1.696797 Vd: 55.532241 glass_code: 697555 density: 3.7 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 5.7e-06 K-1 - temperature_range: 20 300 °C coefficient: 7.1e-06 K-1 dPgF: -0.0082 climatic_resistance: 1.0 acid_resistance: 52.2 phosphate_resistance: 3.0
Comments
Recommended
References
OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets