Optical constants of OHARA - LAM (Lanthanum, medium-index)
S-LAM58
Wavelength:
µm
(0.35–2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.70984856λ^2}{λ^2-0.0100852127}+\frac{0.173342897λ^2}{λ^2-0.0470890831}+\frac{1.64833565λ^2}{λ^2-157.46852}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 25.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 2.9e-06 1.29e-08 -3.62e-11 6.72e-07 7.76e-10 0.243 nd: 1.720000 Vd: 41.978463 glass_code: 720420 density: 4.0 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 6.6e-06 K-1 - temperature_range: 20 300 °C coefficient: 7.7e-06 K-1 dPgF: -0.0006 climatic_resistance: 1.0 acid_resistance: 3.2 phosphate_resistance: 1.0
Comments
Recommended
References
OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets