Optical constants of OHARA - LAM (Lanthanum, medium-index)
S-LAM59
Wavelength:
µm
(0.34–2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.63056133λ^2}{λ^2-0.00899690705}+\frac{0.186994897λ^2}{λ^2-0.0368011993}+\frac{1.30014289λ^2}{λ^2-122.239544}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 25.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 1.01e-06 1.19e-08 -3.79e-11 5.89e-07 6.69e-10 0.214 nd: 1.697002 Vd: 48.516066 glass_code: 697485 density: 3.77 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 7.1e-06 K-1 - temperature_range: 20 300 °C coefficient: 8.3e-06 K-1 dPgF: -0.0041 climatic_resistance: 3.0 acid_resistance: 5.2 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